The 7 Best Thermal Paste of 2026

Thermal Grizzly Kryonaut 1g is a top-tier thermal paste tailored for overclockers, gamers, and anyone pushing CPUs, GPUs, PS5, Xbox, or other high-performance hardware to the limit. Optimized with nano-aluminum and zinc oxide, it excels in extreme cooling scenarios, filling microscopic surface gaps for superior heat transfer and lower operating temperatures.

Standout features include its exceptional thermal conductivity, viscosity of 130-170 Pa·s for controlled spreading, and a spatula for precise application. Real-world performance shines in overclocking, with users reporting significant temperature reductions without curing or degradation up to 350°C. It's electrically non-conductive, ensuring safe use on sensitive components.

Build quality is premium, with a protective syringe that blocks UV and environmental damage, allowing storage for years post-opening. Application demands clean surfaces and slow spreading—about 3 seconds per motion on standard CPUs—for optimal results, but the included tools make it user-friendly.

Potential drawbacks include the need for careful technique if the paste is cold, and no standardized thermal conductivity listing due to variable real-world factors. Overall, Kryonaut delivers unmatched reliability for enthusiasts.

Verdict: A must-buy for overclockers seeking the best cooling; its performance justifies the precision required.

Operating Temperature: -250°C to 350°C

Density: 3.7 g/cm³

Electrical Conductivity: 0 pS/m

Viscosity: 130 - 170 Pa·s

Available in 1g size with spatula for easy application.

Clean CPU/GPU surface thoroughly using TG Remove or wipes. Apply small amount at room temperature. Spread slowly with spatula—3 seconds per motion for even coverage. Store in original syringe to protect from UV and environment.

Avoid grease, cold paste, or rushed spreading to prevent issues.

ARCTIC MX-4 thermal paste is designed for anyone upgrading or building PCs, consoles like PS4 and Xbox, or pushing hardware limits through overclocking. This 4g tube delivers premium performance via carbon microparticles that fill tiny surface imperfections on CPUs and GPUs, ensuring rapid and efficient heat dissipation.

Standout features include its very high thermal conductivity, non-conductive properties that prevent electrical shorts, and ease of use even for novices. Real-world benefits shine in maintaining lower temperatures during intensive gaming or rendering, with a viscosity of 31,600 Poise making it spread smoothly without air pockets. It withstands -50 to 150°C continuously, proving reliable across varied setups.

Build quality emphasizes consistency, with the same proven formula in evolved packaging and an authenticity check to avoid counterfeits. While the small 4g quantity suits single uses and lacks a spatula in this variant, its metal-free composition avoids corrosion risks common in liquid metals.

Minor drawbacks include the modest volume and absence of extras like a spatula, but these do not detract from its core strengths. Overall, ARCTIC MX-4 earns top marks for safe, durable cooling that enthusiasts and beginners can trust for years.

Density: 2.50 g/cm³

Viscosity: 31,600 Poise

Volume Resistivity: 3.8 x 10¹³ Ω-cm

Continuous Use Temperature: -50~150 °C

Color: Grey

Non-conductive, metal-free formula for safe application on all processors.

ARCTIC MX-7 thermal paste is a top-tier cooling solution tailored for enthusiasts upgrading CPUs, GPUs, laptops, consoles, and processors. Its performance-optimized formula delivers very high thermal conductivity, making it ideal for anyone pushing hardware limits in gaming rigs or high-end workstations.

Standout features include a dense, viscous consistency that excels in heat transfer while preventing pump-out or dry-out over repeated thermal cycles. The paste applies perfectly by self-distributing under cooler pressure, forming a thin, air-bubble-free layer for maximum efficiency. Real-world use shows sustained low temperatures and reliable performance without frequent reapplication.

Build quality shines with non-conductive, non-capacitive properties, ensuring safety across all devices. Paired with MX Cleaner, it simplifies maintenance by removing old residue thoroughly. The design prioritizes longevity and ease for experienced users.

Potential drawbacks include the inability to spread it manually, which demands proper cooler mounting technique, and a learning curve for novices due to its thickness. The cleaner is a separate purchase, adding a small step.

Overall, ARCTIC MX-7 earns high marks for delivering ultimate thermal performance with unmatched durability. It's a must-buy for serious builders seeking hassle-free, long-term cooling excellence.

Choose MX-7 if you need premium thermal paste for high-heat components like overclocked CPUs or GPUs. It's perfect for desktops, laptops, and consoles where reliability matters.

Avoid if you're a complete beginner preferring spreadable pastes; opt for it if you value performance over simplicity.

Pair with MX Cleaner for best results during repastes. Always clean surfaces thoroughly before applying a pea-sized dot.

ARCTIC MX-4 thermal paste is designed for anyone building or upgrading a PC, from novice assemblers to hardcore overclockers needing reliable CPU and GPU cooling. This 4g tube, complete with a spatula, fills microscopic surface imperfections on chips and coolers using carbon microparticles, delivering high thermal conductivity for rapid heat transfer.

In real-world use, MX-4 excels at keeping temperatures low during demanding tasks, thanks to its 31,600 Poise viscosity that spreads smoothly without drying out quickly. The non-conductive, metal-free formula adds safety by avoiding short circuits or corrosion, making it a go-to for VGA cards and processors alike. Its wide -50 to 150°C operating range ensures stability in various builds.

Build quality shines through consistent performance and an authenticity check feature to confirm originality. While application demands attention to detail to minimize air bubbles, the included tools simplify the process for most users.

Potential drawbacks include the modest tube size for frequent rebuilder and the need for practice on spreading compared to pre-applied pads. Overall, MX-4 offers unbeatable value for safe, effective cooling with a strong verdict: highly recommended for superior thermal performance without risks.

Density: 2.50 g/cm³

Viscosity: 31,600 Poise

Volume Resistivity: 3.8 x 10¹³ Ω-cm

Continuous Use Temperature: -50~150 °C

Colour: Grey

Content: 4 g (includes spatula)

The ARCTIC MX-6 is a premium carbon filler-based thermal paste designed for high-performance cooling in PCs, laptops, consoles, and graphics cards. It targets PC builders, gamers, overclockers, and anyone seeking reliable temperature management without the hassles of inferior pastes. Unlike many competitors, it skips gimmicky additives like diamond dust, relying on a silicone gel carrier for smooth, effective application.

Standout features include 20% lower thermal resistance than the popular MX-4, delivering instant peak performance without a burn-in period. Real-world benefits shine in demanding scenarios: lower temps on overclocked CPUs and GPUs, versatility for direct-die cooling on console processors, and resistance to pump-out or bleeding for sustained results. Lab-tested metrics confirm its edge in conductivity and minimum bond line thickness.

Build quality reflects ARCTIC's 20+ years of expertise, with a non-conductive, non-capacitive formula that minimizes risks during installation. The resealable 8g syringe ensures precise dispensing and prevents drying, while high viscosity supports long-term stability from -50 to 150°C. An authenticity check adds peace of mind against counterfeits.

Drawbacks are minor: the thicker consistency demands careful, even pressure for uniform spread, and the modest tube size suits occasional users best. No major issues like conductivity or corrosion risks.

Verdict: ARCTIC MX-6 earns top marks for performance-driven users wanting hassle-free, superior cooling. Upgrade from basic pastes for noticeable temp drops and durability.

Thermal Conductivity: Very high, 20% better than MX-4

Composition: Carbon filler-based with silicone gel carrier

Size: 8 grams, resealable syringe

Temperature Range: -50 to 150°C

Specific Gravity: 2.60 g/cm³

Viscosity: 45,000 Poise

Volume Resistivity: 1.8 x 10¹² Ω-cm (non-conductive)

Choose MX-6 if you build or upgrade high-end PCs, overclock, or cool console GPUs. Pair with quality heatsinks for best results. Clean old paste with MX Cleaner first. Verify authenticity online post-purchase.

For beginners, its forgiving non-conductive nature reduces errors. Frequent appliers may prefer larger sizes or bundles with cleaner.

The ARCTIC MX-6 is a high-performance thermal paste designed for CPUs, GPUs, consoles, and laptops, perfect for PC builders, overclockers, and gamers seeking reliable cooling. Unlike pastes needing burn-in, it delivers optimal thermal conductivity immediately after application, thanks to its carbon filler-based formula and silicone gel carrier for even spread under heat sink pressure.

Standout features include 20% lower thermal resistance than the MX-4, non-conductive properties to prevent shorts, and versatility for direct-die cooling on graphics cards or console processors. Real-world benefits shine in sustained lower temperatures, resistance to drying or bleeding, and prevention of pump-out, ensuring consistent performance over time with a -50 to 150°C range.

Build quality reflects ARCTIC's 20+ years of expertise, with a resealable 4g syringe for easy, mess-free use and no liquid metal risks like corrosion. The higher viscosity aids stability but may require steady pressure for uniform coverage.

Potential drawbacks include the modest 4g volume for multi-system builds and a learning curve for its thicker consistency. Still, the authenticity check adds peace of mind against counterfeits.

Verdict: ARCTIC MX-6 earns top marks for performance-focused users wanting safe, durable cooling without gimmicks. Highly recommended for upgrades demanding efficiency.

Thermal Paste: ARCTIC MX-6, 4g

Specific Gravity: 2.60 g/cm³

Continuous Use Temperature: -50~150 °C

Volume Resistivity: 1.8 x 10¹² Ω-cm

Viscosity: 45,000 Poise

Non-conductive, carbon-based, no burn-in required.

Thermal Grizzly Kryonaut Extreme 2g is a premium thermal paste engineered for extreme overclocking enthusiasts pushing CPUs, GPUs, PS5s, or Xboxes to their limits. With ultra-fine nano-aluminum oxide particles and optimized thickness, it delivers unmatched thermal conductivity, ideal for users with advanced liquid cooling or liquid nitrogen setups who demand zero compromises on heat management.

Standout features include its ability to fill the tiniest surface irregularities, ensuring efficient heat dissipation even under the harshest conditions. Real-world performance shines in high-stress overclocking, providing immediate temperature reductions, lower fan noise, and sustained stability across a vast range from -250°C to 350°C. Extensive testing backs its top-tier quality for both pros and dedicated hobbyists.

Design focuses on practicality with a 2g syringe and two applicators for clean, even spreading. The paste's viscosity (130-180 Pa·s) allows slow, precise application on clean surfaces, though it rewards patience. Density of 3.76 g/cm³ and zero electrical conductivity make it safe for sensitive components.

Potential drawbacks include the need for thorough surface cleaning and slow spreading to avoid issues like clumping, which could challenge beginners. Proper storage in original packaging is recommended to maintain longevity beyond three years.

Overall, Kryonaut Extreme earns a strong recommendation for overclockers seeking the absolute best thermal solution. It transforms heat management, unlocking higher clocks and reliability in demanding builds.

Operating Temperature: -250°C to 350°C

Density: 3.76 g/cm³

Electrical Conductivity: 0 pS/m

Viscosity: 130 - 180 Pa·s

Size: 2 grams (up to 12 CPUs)

Includes: Syringe and two applicators

Clean CPU surface thoroughly with TG Remove or cleaning wipes, ensuring no grease remains. Apply paste at room temperature.

Spread slowly in one motion taking about 3 seconds for even coverage on Intel or AMD CPUs.

Store in original packaging after use to protect from UV and environmental factors; usable for 3+ years.