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Best Thermal Paste for Video Editing (2026 Guide)

Marcus Bell Marcus Bell Jul 28, 2026 9 min read 5 views

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Video editing workstations run hot. Long render queues, GPU-accelerated exports, and multi-track 4K timelines push your CPU and GPU to sustained high loads for hours at a time — and the paste between your chip and cooler is what keeps those temperatures in check. If you’re rebuilding or repasting a rig used for editing, picking the right compound matters more than most people think.

Quick answer: For most people in 2026, the best thermal paste for video editing is the ARCTIC MX-4 — our #1 rated choice. See the full ranked comparison, alternatives and buying advice below.

Check Price on Amazon →

1
Prime Best Seller

ARCTIC MX-4 Thermal Compound, 4 g Syringe

ARCTIC
★ ★ ★ ★ ★
4.8 (105.1K)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • Metal-free, non-conductive carbon microparticle formula, so a slip onto nearby SMD components will not short the board
  • 4 g syringe covers roughly 15 to 20 desktop CPU applications at a pea-sized dot
  • Manufacturer states an 8-year service life, so one application normally outlasts the build
  • Continuous-use range of -50 to 150 C covers sub-ambient loops and hot mini-ITX cases alike
  • Viscosity of 31,600 poise spreads under mount pressure without needing a spreader card

Cons

  • No spatula or cleaning wipe in this variant, so you supply isopropyl and a lint-free cloth
  • Grey compound stains PCB and fabric and will not wash out of clothing
  • Conductivity trails liquid-metal compounds by a few degrees under sustained full load, which is the trade for being non-conductive
Compound specs and limits

The 4 g syringe holds enough carbon-microparticle compound for roughly 15 to 20 standard desktop CPU applications, or fewer if you are covering a large heatspreader such as an AM5 or LGA 1700 lid.

  • Density: 2.50 g/cm3
  • Viscosity: 31,600 poise, thick enough to stay put yet still spread under mount pressure
  • Volume resistivity: 3.8 x 10^13 ohm-cm, effectively an insulator
  • Continuous-use range: -50 to 150 C
  • Colour: grey

Stated service life is eight years, so a single application normally spans the whole life of the build. The formula has stayed the same across packaging revisions, and each tube carries an authenticity code you can verify with the manufacturer before use.

Applying it cleanly

Strip the old compound first. Isopropyl alcohol at 90 percent or higher on a lint-free cloth clears both the heatspreader and the cooler base; neither item is included here, so buy them separately.

A pea-sized dot in the centre of the lid suits most square LGA and AM5 chips. Rectangular Threadripper and older HEDT lids do better with a thin line down each axis. Lower the cooler straight down and tighten the mounting screws in a diagonal cross pattern, a quarter turn at a time, so the compound spreads evenly and no air pocket forms in a corner.

Do not spread it with a card unless you are covering a bare GPU die, where a thin even film matters more. Any smear that reaches surrounding capacitors is harmless because the formula carries no metal, but wipe it away anyway to keep the board readable.

What it works with

Because the formula is metal-free and non-conductive, it is safe on every socket type in current use, on bare GPU dies, on laptop heat pipes and on memory or VRM heatsinks. There is no risk of bridging pins on a shim-less die, and no galvanic corrosion of an aluminium cooler base, which rules out the two failure modes that make liquid metal risky for a first-time builder.

The trade is raw conductivity: liquid-metal compounds shift a few more degrees under sustained full load. For an air tower, an all-in-one loop or a console teardown, that gap rarely changes fan behaviour. Storage is simple too, since the compound does not cure inside the tube, so a partly used 4 g syringe stays usable for later builds if you cap it and keep it out of direct sun.

2
Prime Editor's Pick

ARCTIC MX-4 Thermal Paste, 4 g with Spatula

ARCTIC
★ ★ ★ ★ ★
4.8 (72.3K)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • Carbon microparticle formula is metal-free and non-conductive, so a stray smear cannot short a socket pin
  • Volume resistivity of 3.8 x 10^13 ohm-cm alongside a density of 2.50 g/cm3 and a viscosity of 31,600 Poise
  • Holds up across a continuous-use range of -50 to 150 degrees C
  • A 4 g tube covers roughly ten desktop CPU mounts at 0.3 to 0.4 g each
  • Plastic spatula included for spreading an even film on bare dies and rectangular heat spreaders

Cons

  • No thermal conductivity figure in W/mK is published for the compound, so a direct spec comparison against rivals is not possible
  • The 4 g tube suits a home builder but runs out quickly on a repair bench doing weekly rebuilds
  • Surface cleaning solution is not included; the MX Cleaner is a separate item
Thermal Transfer and Composition

The compound is built around carbon microparticles rather than metal oxides or liquid metal. Those particles fill the microscopic pits in a processor lid and a cooler base, replacing the trapped air that would otherwise sit in the gap and block heat flow.

  • Density is quoted at 2.50 g/cm3 with a viscosity of 31,600 Poise, giving a firm but spreadable body
  • Volume resistivity of 3.8 x 10^13 ohm-cm means it does not conduct electricity
  • Continuous-use range spans -50 to 150 degrees C, covering sub-ambient loops through to a heavily loaded overclock

Because the formula is metal-free, paste that escapes onto a socket pin or a surface-mount component will not short anything, and there is no corrosion risk to a copper or nickel cooler base of the kind liquid metal introduces.

Applying It Without Bubbles

A plastic spatula is in the box, which matters because the consistency of this compound suits spreading as much as the single pea-dot method.

  • Clean both mating surfaces with isopropyl alcohol first; the dedicated cleaning solution is sold separately and is not bundled here
  • A central dot works for square heat spreaders, while the spatula suits rectangular lids and bare dies where an even film matters more
  • Seat the cooler in one straight motion and tighten in a diagonal cross pattern so trapped air is pushed outward

There is no cure or burn-in period, so temperatures read true from the first boot. The compound does not dry out or crack in service, so a remount months later usually needs only a fresh clean and a new layer rather than scraping hardened residue off the lid.

Coverage From a 4 g Tube

Four grams sounds small but goes a long way on typical desktop hardware.

  • A standard AM5 or LGA1700 heat spreader takes roughly 0.3 to 0.4 g per application, so the tube covers around ten CPU mounts
  • A bare GPU die needs less, while a large workstation socket or a heat-spreader-free laptop chip needs more careful metering
  • Leftover compound stores for years if the cap is refitted and the tube kept out of direct sun

For anyone repasting one machine every couple of years, this quantity outlasts the hardware itself. A repair bench turning around several rebuilds a week will prefer a larger tube of the same formula to avoid constant cap-fiddling. The included spatula is a single plastic tool, so a busy workshop will want spares of it.

3
Prime Limited Time

Noctua NT-H1 3.5g Pro-Grade Thermal Compound Paste

Noctua
★ ★ ★ ★ ★
4.8 (32.0K)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • 3.5g tube yields roughly 15-20 applications on typical AM4, LGA1700, or LGA1200 sockets
  • Not electrically conductive and non-corroding, safe on copper or aluminum coolers regardless of plating
  • Cleans off with a dry tissue or paper towel, no isopropyl alcohol required
  • Recommended usage life of up to 5 years once applied to a CPU
  • Compatible across AMD Ryzen and Intel Core CPUs, AMD Radeon and Nvidia GeForce GPUs, plus PS4/PS5 and Xbox consoles

Cons

  • Yields far fewer applications on larger sockets, dropping to roughly 3 uses on TR4 Threadripper platforms
  • Recommended storage window is capped at 3 years unopened, so a long-unused tube may need replacing before a build
  • Comes in a single small 3.5g size only, with no larger multi-tube pack offered in this listing
Coverage & Application

A single 3.5g tube covers a range of application counts depending on the CPU socket size, since larger sockets need more paste per spread.

  • Roughly 20 applications on smaller sockets such as LGA1200
  • About 15 applications on AM4 or LGA1700 sockets
  • As few as 3 applications on large TR4 Threadripper sockets

No pre-spreading is needed before installing a heatsink, since the compound is designed to spread under mounting pressure on its own. For anyone building or repasting several smaller-socket systems, one tube covers multiple builds, while a single large Threadripper repaste can use a meaningful share of the tube in one application.

Compatibility

This compound is designed for both air and liquid cooling setups across a wide range of hardware, from desktop CPUs to consoles.

  • Compatible with AMD Ryzen and Intel Core CPUs
  • Works with AMD Radeon and Nvidia GeForce GPUs
  • Also suited to PS4, PS5, Xbox consoles, and laptop repasting

Because it is not electrically conductive and does not corrode metal, it is safe to use regardless of whether the cooler base is copper or aluminum, nickel-plated or bare. This broad compatibility makes a single tube useful for repasting several different devices in a household rather than needing a different compound for each platform.

Longevity & Storage

Once applied, the compound is rated for up to 5 years of usage on a CPU before a repaste is generally recommended.

  • Up to 5 years of recommended usage time once applied
  • Up to 3 years of recommended storage time unopened
  • Cleans off easily with a dry tissue, no solvent required for removal

Because the unopened storage window is shorter than the applied usage window, a tube bought well ahead of a planned build may already be past its ideal freshness by the time it gets used. For anyone keeping a tube on hand for future repastes, checking the age against the 3-year storage guidance helps confirm the paste is still in its intended condition before applying it to a build.

4
Prime Top Rated

ARCTIC MX-4 Thermal Paste, 8 g Syringe

ARCTIC
★ ★ ★ ★ ★
4.8 (18.0K)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • Carbon microparticle formula is metal-free and electrically non-conductive, so a stray smear will not short a socket
  • 8 gram syringe covers roughly ten to fifteen desktop processor applications
  • Continuous use range spans -50 to 150 degrees Celsius
  • No cure time, so temperatures settle from the first boot
  • Viscosity of 31,600 poise spreads under normal mounting pressure without running off a vertical die

Cons

  • This version ships without a spatula; the applicator edition is a separate listing
  • Non-curing compound eventually pumps out from hot dies, so a repaste falls due every few years
  • Grey paste stains cloth and circuit board and needs isopropyl alcohol to clean off
Thermal Transfer Performance

The compound is built from carbon microparticles that settle into the microscopic pits across a processor heatspreader and a cooler base, displacing the air that would otherwise insulate the joint. Air is the enemy in that gap, and filling it is exactly what drops core temperatures.

  • Continuous use range of -50 to 150 degrees Celsius covers stock and overclocked loads
  • Density of 2.50 g per cubic centimetre and viscosity of 31,600 poise
  • No cure or burn-in period, so readings are stable from the first boot

Expect a meaningful gap against a dried factory pad and a much smaller one against other quality compounds. The larger wins usually come from mounting pressure and flat contact, so seat the cooler evenly before blaming the paste.

Applying The 8g Syringe

The 8 gram syringe is a generous quantity, enough for roughly ten to fifteen desktop processor applications depending on die size, which suits anyone building several machines or repasting laptops over a few years.

  • A pea-sized blob in the centre works for most square heatspreaders; the cooler spreads it under pressure
  • Lower the cooler straight down rather than sliding it, since sliding is how air pockets form
  • Clean old compound off with isopropyl alcohol and a lint-free cloth first

The consistency is deliberately middling: thin enough to spread under normal mounting pressure, thick enough that it will not run off a vertical graphics die. Store the syringe capped and upright, since a warm cupboard lets the carrier settle out over years.

Electrical Safety And Compatibility

Unlike liquid metal or metal-oxide compounds, this paste is metal-free and electrically non-conductive. A smear that escapes onto socket pins, surface-mount components or a graphics card board will not create a short, which removes the single biggest risk facing a first-time repaste.

  • Safe on processors, graphics dies, laptop chips, VRM heatsinks and console silicon
  • No corrosion risk to aluminium or copper cooler bases, unlike liquid metal on aluminium
  • An authenticity check lets you verify a genuine unit against counterfeits

Because it does not conduct, it is also the sensible choice for pasting a chip you cannot easily replace, such as a soldered laptop processor or a games console where a slip would be terminal.

5
Prime

Noctua NT-H2 3.5g Thermal Computer Paste incl. 3

Noctua
★ ★ ★ ★ ★
4.8 (0)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • Premium-grade thermal compound for optimal heat-transfer from the CPU
  • second generation of s award-winning NT-H1
  • Easy to apply (no need to spread before heatsink installation) and easy
  • For air and liquid coolers (DIY AiO), can significantly lower
  • Trusted quality with excellent long-term stability recommended

Cons

  • Requires verifying desktop clearance for 6.18"L x 2.76"W x 1.18"H dimensions
  • Periodic cleaning recommended to maintain the Thermal Paste finish
  • Initial setup requires checking operating instructions carefully
Overview and Practical Utility

The Noctua NT-H2 3.5g Thermal Computer Paste incl. 3 offers reliable functional utility tailored for modern home and workplace environments. Designed to enhance daily productivity, this unit integrates Premium-grade thermal compound for optimal heat-transfer from the CPU alongside second generation of Noctua s award-winning NT-H1. Users will find the intuitive design straightforward to operate across various room configurations and daily routines. The versatile construction adapts easily to personal workspaces, providing consistent practical value and streamlined usability. Physical dimensions measuring 6.18"L x 2.76"W x 1.18"H allow for straightforward spatial planning prior to final placement.

Build Quality and Specs

Built using resilient structural components, this unit features a sturdy outer housing engineered to resist operational wear. Precision manufacturing ensures that all joints and surface connections remain firmly aligned during regular daily activity. Easy to apply (no need to spread before heatsink installation) and easy reinforces overall physical stability over extended service periods. Premium Thermal Paste construction maintains structural integrity and cosmetic appearance under routine handling. Structural integrity remains firm throughout regular usage, giving owners peace of mind. Following standard setup recommendations and maintaining clean surfaces ensures consistent operational utility across daily activities.

Setup and Maintenance Advice

Initial setup requires placing the unit on a flat, stable surface with adequate clearance around all sides for proper operation. Ensure all power or connection cables are routed neatly without sharp bends to prevent wire strain. Regular care involves wiping exterior housing surfaces with a soft cloth to remove dust buildup. Inspecting mechanical connections periodically preserves operational efficiency and maintains cosmetic appearance over time. Following standard setup recommendations and maintaining clean surfaces ensures consistent operational utility across daily activities. This functional equipment provides steady performance and practical convenience when properly integrated into your workspace.

6
Prime

ARCTIC MX-4 - Premium Performance Thermal Paste for All

ARCTIC
★ ★ ★ ★ ★
4.8 (0)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • WELL PROVEN QUALITY The design of our thermal paste packagings has
  • EXCELLENT PERFORMANCE MX-4 thermal paste is made of carbon
  • SAFE APPLICATION The MX-4 is metal-free and non-electrical conductive
  • 100 % ORIGINAL THROUGH AUTHENTICITY CHECK Through our Authenticity
  • EASY TO APPLY With an ideal consistency, the MX-4 is very easy to use,

Cons

  • Requires verifying desktop clearance for 4.72"L x 4.72"W x 0.79"H dimensions
  • Requires routine care to keep exterior housing dust-free
  • Initial setup requires checking operating instructions carefully
Overview and Practical Utility

The ARCTIC MX-4 - Premium Performance Thermal Paste for All offers reliable functional utility tailored for modern home and workplace environments. Designed to enhance daily productivity, this unit integrates WELL PROVEN QUALITY The design of our thermal paste packagings has alongside EXCELLENT PERFORMANCE ARCTIC MX-4 thermal paste is made of carbon. Users will find the intuitive design straightforward to operate across various room configurations and daily routines. The versatile construction adapts easily to personal workspaces, providing consistent practical value and streamlined usability. Physical dimensions measuring 4.72"L x 4.72"W x 0.79"H allow for straightforward spatial planning prior to final placement.

Build Quality and Specs

Built using resilient structural components, this unit features a sturdy outer housing engineered to resist operational wear. Precision manufacturing ensures that all joints and surface connections remain firmly aligned during regular daily activity. SAFE APPLICATION The MX-4 is metal-free and non-electrical conductive reinforces overall physical stability over extended service periods. Structural integrity remains firm throughout regular usage, giving owners peace of mind. Following standard setup recommendations and maintaining clean surfaces ensures consistent operational utility across daily activities. This functional equipment provides steady performance and practical convenience when properly integrated into your workspace.

Setup and Maintenance Advice

Initial setup requires placing the unit on a flat, stable surface with adequate clearance around all sides for proper operation. Ensure all power or connection cables are routed neatly without sharp bends to prevent wire strain. Regular care involves wiping exterior housing surfaces with a soft cloth to remove dust buildup. Inspecting mechanical connections periodically preserves operational efficiency and maintains cosmetic appearance over time. Following standard setup recommendations and maintaining clean surfaces ensures consistent operational utility across daily activities. This functional equipment provides steady performance and practical convenience when properly integrated into your workspace.

7
Prime

ARCTIC MX-7 Thermal Paste, 8g

ARCTIC
★ ★ ★ ★ ★
4.8 (1.6K)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • High filler content and a dense, viscous formula push heat transfer above typical off-the-shelf pastes
  • High cohesion resists pump-out, dry-out, and bleeding across repeated thermal cycles
  • Electrically non-conductive and non-capacitive, so accidental contact with board components carries no short-circuit risk
  • 8g tube covers multiple applications on CPUs, GPUs, or laptop chips rather than a single use
  • Pairs with a dedicated cleaner solution for full removal of old paste before reapplication

Cons

  • Paste cannot be manually spread by design, it relies on cooler mounting pressure to distribute evenly
  • Dense, highly viscous consistency makes it harder to apply thin, precise lines than looser pastes
  • The companion cleaner for removal is sold separately, not bundled with this tube
Thermal Performance

A performance-optimized formula with high filler content gives this paste a dense, viscous consistency built specifically for maximum heat transfer between a chip and its cooler. High cohesion is engineered into the paste to resist pump-out, dry-out, and bleeding across repeated thermal cycles, which is what typically causes older thermal paste to degrade and temperatures to creep upward over months of use.

  • High filler content for efficient heat transfer
  • Resists pump-out, dry-out, and bleeding over time
  • Formulated for long-lasting, consistent performance

Because the formula favors long-term stability over easy manual spreading, it is designed to be applied and left in place rather than reworked repeatedly by hand.

Application Method

By design, this paste cannot be manually spread across a chip surface the way looser pastes can. Instead, a small dot or line is placed at the center, and the cooler's own mounting pressure distributes it evenly outward when it is installed, forming a thin bond line without trapping air bubbles underneath.

  • Apply a dot or thin line at the center of the chip
  • Cooler mounting pressure spreads the paste on contact
  • Low adhesion avoids trapped air bubbles under the cooler

Because manual spreading is not the intended method, following the dot-or-line application rather than trying to smooth it out with a card or spatula gives the most even coverage.

Compatibility & Safety

The paste is electrically non-conductive and non-capacitive, meaning accidental contact with surrounding board components during application carries no risk of a short circuit or electrical discharge. That makes it safe to use across CPUs, GPUs, laptops, and gaming consoles alike, without needing extra masking or protective steps around nearby components.

  • Electrically non-conductive and non-capacitive formula
  • Safe for use on CPUs, GPUs, laptops, and consoles
  • Compatible with a dedicated cleaner solution for old paste removal, sold separately

Removing old paste thoroughly before reapplying matters for getting the full benefit of this paste's heat transfer, which is where a dedicated cleaner solution comes in as a companion step.

8
Prime

ARCTIC MX-4 Thermal Paste, 45 g

ARCTIC
★ ★ ★ ★ ★
4.8 (1.4K)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • 45 g tube covers dozens of CPU and GPU remounts, enough for a repair bench rather than one build
  • Metal-free carbon microparticle formula measured at 3.8 x 10^13 ohm-cm volume resistivity, so a slip onto socket pins will not short anything
  • Specified for continuous use from -50 to 150 degrees C, covering sub-ambient loops and hot laptop heat spreaders
  • 31,600 Poise consistency spreads under mount pressure alone, so no manual smearing step is required

Cons

  • This pack ships without a spatula, so you supply an applicator or rely on the mount-pressure method
  • No cleaning wipes in the box, meaning isopropyl alcohol and a lint-free cloth have to be sourced separately
  • Grey is the only colour offered, and squeeze-out shows plainly on a dark heat spreader until it is wiped away
Thermal Transfer And Safety

The compound is built from carbon microparticles rather than metal oxides or liquid metal. Those particles fill the microscopic pits across a CPU heat spreader and a cooler base, which is where trapped air would otherwise sit and block heat flow.

  • Density 2.50 g per cubic centimetre
  • Volume resistivity 3.8 x 10^13 ohm-cm, electrically non-conductive
  • Continuous use band of -50 to 150 degrees C

The non-conductive part is the practical safety story. Liquid metal compounds can bridge surface-mount components or corrode an aluminium cooler base, and either mistake can end a build. A carbon-based paste that lands on a motherboard is a cleanup job, not a dead board. That makes it a sensible choice for first-time builders and for anyone remounting a cooler in a cramped case where the tube may slip.

How To Apply It

Consistency is measured at 31,600 Poise, which is thick enough to hold a bead shape but soft enough to flow when the cooler is torqued down. That means you do not need to spread it manually with a card, and doing so tends to trap air pockets rather than remove them.

  • Clean both surfaces with isopropyl alcohol and a lint-free cloth first
  • Place a single central bead sized to the heat spreader
  • Tighten the cooler in a diagonal cross pattern, a little at a time

For a large heat spreader such as Threadripper or a bare GPU die, a five-point or thin-line pattern gives more even coverage than one central dot. Let mounting pressure do the work in every case, and resist the urge to lift the cooler to check, since that ruins the seal.

Tube Size And Coverage

At 45 g, this is the workshop-sized tube rather than the single-application syringe most coolers include. A typical desktop CPU mount uses well under a gram, so one tube stretches across many rebuilds, GPU repastes and laptop teardowns.

  • 45 g net, shipped in a 4.72 by 4.72 by 0.79 inch carton
  • Grey compound, no dye options
  • Authenticity check on the packaging to confirm a genuine unit

If you only ever plan to build one PC, this quantity is far more than the job needs and part of it will sit in a drawer. It earns its place with people who service machines regularly, run several systems at home, or swap coolers often while tuning. Keep the cap sealed and store it away from heat so the carrier does not separate over time.

9
Prime

ARCTIC MX-7 Thermal Paste, 4g with MX-Cleaner

ARCTIC
★ ★ ★ ★ ★
4.8 (829)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • 4g syringe includes bundled MX-Cleaner for surface prep before application
  • High cohesion formula resists pump-out and dry-out across repeated thermal cycles
  • Electrically non-conductive and non-capacitive, safe near CPU sockets and surrounding components
  • Compact 4.13 x 0.47 x 0.77 inch syringe fits in a small tool drawer or PC-building kit

Cons

  • The dense, highly viscous formula cannot be spread manually by design, so an even bead relies on cooler mounting pressure rather than manual spreading
  • 4g syringe size covers roughly one to a handful of applications depending on CPU size, not a bulk supply for repeated rebuilds
  • No stated shelf life or expiration guidance is included in the listed features
Thermal Performance Specs

This is a high-viscosity thermal compound built for CPUs and GPUs that need consistent heat transfer between the chip and the cooler's base plate.

  • High filler content formula for exceptional heat transfer
  • Electrically non-conductive and non-capacitive for safe use around exposed contacts
  • High cohesion resists pump-out, dry-out and bleeding through repeated heat cycles
  • Syringe size: 4g, with dimensions of 4.13 x 0.47 x 0.77 inches

Because the paste resists pump-out over time, it's built for setups that see regular thermal cycling, such as gaming or rendering rigs that heat up and cool down repeatedly. The non-conductive formula also means an accidental drip near the socket won't cause a short.

Application and Cleanup

Application differs from thinner pastes: this compound is designed to spread only under the pressure of the cooler being mounted, not by manual spreading with a card or finger.

  • Apply a small dot or line at the center of the CPU or GPU die
  • Cooler mounting pressure spreads the paste into an even, thin bond line
  • Included MX-Cleaner removes old paste and residue before reapplication
  • Low adhesion helps avoid trapped air bubbles under the cooler

Because it isn't meant to be spread by hand, first-time users accustomed to manual spreading should apply a smaller amount than usual and let the cooler's clamping pressure do the spreading work, checking coverage on the first removal if unsure.

Compatibility Across Devices

This compound is rated safe for use across a range of electronics, not just desktop CPUs, since it carries no electrical conductivity risk.

  • Safe for CPUs, GPUs, laptops and gaming consoles
  • No risk of short circuits or electrical discharge if applied near contacts
  • Works with any standard air or liquid cooler mounting system
  • MX-Cleaner doubles as prep for reapplying paste on any of these device types

Because the syringe holds 4g, it suits a handful of individual builds or reapplications rather than a shop doing dozens of rebuilds, where a larger syringe size would go further per job.

10
Prime

Thermal Grizzly Kryonaut Extreme Thermal Paste, 2g

ThermalGrizzly
★ ★ ★ ★ ★
4.8 (370)
Updated: Jul 26, 2026
Last update on Jul 26, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Pros & Cons

Pros

  • Thermal conductivity of 14.2 W/mK, among the higher figures for a paste rather than a liquid metal compound
  • Built to withstand a -250C to +350C temperature range, so it stays usable under liquid nitrogen extreme overclocking sessions
  • Zero electrical conductivity (0 pS/m) removes the short-circuit risk that liquid metal compounds carry near exposed pins
  • Includes 12 cleaning wipes (6 wet, 6 dry) to degrease the old paste before reapplication, no separate solvent purchase needed
  • Non-curing formula stays workable over time instead of hardening, so reapplication does not require chiseling off a dried layer

Cons

  • 2g syringe is a small volume, likely only enough for a handful of CPU/GPU applications before running out
  • Thin bead application takes more care than a pre-cut thermal pad, since it is easy to overapply on GPU die-sized contact areas
  • No pre-applied thermal pad convenience, applying paste with the included syringe and applicator takes extra prep steps
Thermal Performance

Kryonaut Extreme carries a 14.2 W/mK thermal conductivity figure, with a viscosity of 130-180 Pas and a specific weight of 3.76 g/cm3, numbers that put it toward the higher end of paste-based thermal compounds rather than liquid metal alternatives. Electrical conductivity sits at 0 pS/m, meaning it will not short a circuit if a small amount spreads onto surrounding contacts, unlike liquid metal pastes that carry that risk near exposed pins.

The compound is built to remain stable across a -250C to +350C range, covering everything from sub-zero liquid nitrogen overclocking sessions to sustained high loads under air or water cooling. Nano-aluminum oxide particles in the formula are sized to fill microscopic surface irregularities on a CPU or GPU die, which is what the manufacturer credits for the improved heat transfer over standard silicone-based pastes.

Application & Compatibility

The 2g syringe ships with a dedicated applicator for spreading a thin, even line across the die before mounting a cooler. The formula is non-curing, meaning it stays soft rather than hardening over months of use, so reapplying paste later does not require scraping off a dried layer first. It works across air, water, and even liquid nitrogen cooling setups, and across CPU, GPU, and console hardware including the PS3, PS4, PS5, and Xbox 360, One, Series S, and Series X.

Included with the syringe are 12 cleaning wipes, split evenly between 6 wet and 6 dry, meant to degrease the old paste and any residue off the contact surface before applying a fresh layer. This removes the need to buy a separate isopropyl alcohol kit for prep work, though the 2g tube itself is a small volume best planned for a handful of applications rather than repeated whole-system use.

What's In the Box

The package includes a 2g syringe of thermal paste, a specially designed applicator for spreading it evenly, and 12 cleaning wipes (6 wet and 6 dry) for surface prep. That combination covers a full paste-swap job start to finish without needing to source cleaning solvent or an application tool separately.

Because the paste ships in a small syringe rather than a bulk tube, it suits a single build or a small number of upgrade sessions rather than a shop doing repeated builds, where a 9ml bulk size would go further. The wide device compatibility list, spanning desktop CPUs and GPUs to gaming console coolers, makes it a reasonable pick for anyone reapplying paste on a console alongside a PC rather than buying separate compounds for each.

Why Thermal Paste Matters for a Video Editing Rig

Editing software leans hard on both the CPU and GPU at once, especially during timeline scrubbing with effects or during export. That combined load generates more heat than typical gaming, which tends to spike and cool in short bursts. A worn-out or poorly applied thermal compound lets temperatures climb, which can trigger thermal throttling mid-render and stretch export times.

Repasting isn’t just for overclockers. If your workstation is a few years old, the factory paste has likely dried out. Swapping it for one of the 10 picks below is a cheap way to bring temperatures — and performance — back to where they should be.

What to Look for in the Best Thermal Paste for Video Editing

Not every compound is built the same way, and the right tube depends on your cooler, your case airflow, and how often you plan to reapply it. Here’s what actually matters when you’re comparing options.

Thermal Conductivity

Higher conductivity, measured in W/mK, moves heat away from the die faster. For sustained editing workloads, look for compounds rated above 8 W/mK. This matters most if you’re running a high core-count CPU that stays busy for long stretches during exports.

Consistency and Ease of Application

Thicker pastes spread less evenly and are more likely to leave air gaps if you’re not experienced with a spatula. Thinner, more fluid compounds are easier to apply evenly with the pea-sized method, which matters if this is your first repaste.

Electrical Conductivity and Safety

Some high-performance pastes use metal particles and can short a board if they spill onto the socket or nearby RAM slots. If you’re nervous about a first repaste, a non-conductive, non-capacitive formula is the safer choice.

Longevity Under Sustained Load

Editing rigs that render overnight or run for hours at a stretch put more cumulative hours on the paste than a rig that’s only used for short gaming sessions. A compound that resists drying out and pump-out over time will hold its performance longer between reapplications.

Best Thermal Paste for Video Editing by Use Case

Rather than reviewing every tube in detail, here’s how to match a compound to the way you actually use your workstation.

Best Overall for Most Editors

The ARCTIC MX-4 is the compound most builders reach for first, and for good reason. It’s non-conductive, easy to spread, and holds up well over years of use without needing to be reapplied constantly — a good fit if you’d rather not think about repasting again for a while.

Best for High Core-Count CPUs

If your editing rig runs a high-core Ryzen or Intel chip that stays pinned during exports, the Noctua NT-H1 is a proven pick. It’s slightly thicker to apply than MX-4 but performs consistently well on chips that generate more sustained heat.

Best for Long-Term Stability

The Noctua NT-H2 is Noctua’s updated formula, and it ships with cleaning wipes for the reapplication — a nice touch if this isn’t your first repaste. It’s a solid choice if you want a compound that won’t need attention again for several years.

Best for Heavy, Round-the-Clock Render Loads

If your workstation renders overnight on a regular basis, the ARCTIC MX-7 is built for exactly that kind of sustained duty cycle. It’s formulated to resist drying out under continuous heat, which matters more here than in a rig that’s only under load for short bursts.

Best for Maximum Cooling Headroom

For editors who’ve also overclocked their CPU or are running a hot GPU alongside it, the Thermal Grizzly Kryonaut Extreme offers some of the highest thermal conductivity available. It costs more per gram, but the extra headroom can be worth it if you’re already pushing your components hard. It’s genuinely overkill for a stock-clocked editing rig, so save it for a system that needs every degree of margin.

CPU vs. GPU: Does It Change What You Should Buy?

Most editing software splits work between the CPU, which handles timeline playback and effects, and the GPU, which handles hardware-accelerated export and color grading. Both chips benefit from a fresh, well-applied compound, but GPUs typically run larger dies with a thinner paste layer, so an easy-to-spread option like MX-4 is usually simpler to apply cleanly. If you’re specifically repasting a graphics card rather than a CPU, our GPU thermal paste guide walks through a few dedicated picks for that job.

If you’re building around a Ryzen chip specifically, socket size and mounting pressure can affect how much paste you need. Our thermal paste for Ryzen builds guide covers that in more detail.

Which Editing Tasks Push Temperatures the Hardest

Not every editing task loads your hardware the same way, and it helps to know where your temperatures are actually coming from before you blame the paste. Scrubbing a raw 4K or 6K timeline in DaVinci Resolve or Premiere Pro without proxies leans heavily on the GPU decoder, while stacking color grading nodes and noise reduction pushes GPU compute much harder than playback alone. Exporting in After Effects, on the other hand, is often more CPU-bound, especially with expression-heavy compositions or plugins that don’t use hardware acceleration.

Batch exports through Handbrake or a render queue left running overnight are where sustained heat really shows up, since both chips can sit near their thermal limit for hours instead of just spiking briefly. If that sounds like your workflow, prioritize a compound built for long duty cycles, like the MX-7 or NT-H2 covered above, rather than the lowest-priced tube available.

How to Apply Thermal Paste the Right Way

Good paste can’t fix a bad application. Follow these steps to get consistent results:

  • Clean off the old paste completely with isopropyl alcohol before applying anything new.
  • Use a pea-sized dot in the center of the die and let the cooler’s mounting pressure spread it.
  • Avoid spreading paste manually with a card unless the compound’s instructions call for it.
  • Reseat the cooler with even, cross-pattern screw pressure to avoid air pockets.
  • Run a stress test afterward to confirm temperatures actually improved.

Common Mistakes to Avoid When Buying Thermal Paste

A few habits trip up first-time buyers more than anything else:

  • Buying based on conductivity alone. A slightly lower-rated paste applied well beats a premium paste applied poorly.
  • Choosing a conductive metal paste for a first repaste. One stray drop near a socket pin can cause real damage.
  • Using way too much paste. Excess paste can squeeze out and contaminate nearby components instead of improving cooling.
  • Ignoring the syringe size. A tiny tube might be fine for one CPU, but it won’t stretch across a combined CPU-and-GPU repaste.
  • Skipping the cleanup step. Old, dried paste left on the die prevents even contact with the fresh compound.

Who Should (and Shouldn’t) Bother Repasting

If your workstation is under three years old and temperatures are already reasonable, repasting probably won’t move the needle much. It’s most worth doing if you’re seeing thermal throttling during long exports, if you’ve just installed a new cooler, or if the system is several years old and has never been repasted. On the other hand, if your real bottleneck is a small case with poor airflow, no paste will fix that. You’d get more benefit from improving case fans or clearing out dust first.

For editors also chasing lower temperatures through overclocking, it’s worth reading our overclocking thermal paste guide, since the priorities shift slightly toward maximum conductivity over ease of use.

Frequently Asked Questions

Does thermal paste actually matter for video editing performance?

Yes, indirectly. Better cooling keeps your CPU and GPU running at their full boost clocks for longer during exports, instead of throttling down once they hit a temperature limit.

How often should I replace thermal paste on an editing workstation?

Every two to four years is a reasonable interval for most compounds, or sooner if you notice rising idle and load temperatures compared to when the system was new.

Is a bigger tube of paste worth it?

If you’re only repasting one CPU, a small tube like the 4g MX-4 is plenty. Larger tubes make more sense if you’re maintaining multiple systems or plan to repaste both a CPU and a GPU.

Can I use the same paste for my CPU and GPU?

In most cases, yes. A general-purpose compound like MX-4 or NT-H1 works fine on both. Just check that the tube size covers both applications with room to spare.

Should I buy paste with a spatula included?

It helps if you’re new to repasting and want more control over spreading, though most modern coolers apply enough pressure that a pea-sized dot spreads on its own. If you’d rather have the option, check our thermal paste with spatula picks.

Bottom Line

For a typical video editing workstation, the ARCTIC MX-4 covers nearly every need without asking you to think too hard about it. If you’re running hotter, higher-core-count hardware or pushing an overclock alongside your editing workload, stepping up to the Noctua NT-H2 or Thermal Grizzly Kryonaut Extreme buys you extra thermal headroom. Whichever tube you pick, take the time to apply it correctly. That’s where most of the temperature improvement actually comes from.

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