15 Best Thermal Pastes Used by Enthusiasts (August 2026)
Thermal paste is the unsung hero of PC cooling. This thin layer of compound between your CPU/GPU and heatsink fills microscopic imperfections, enabling efficient heat transfer. Without quality thermal paste, even the most expensive cooler will struggle to maintain optimal temperatures.
Whether you’re building a new gaming PC, upgrading an aging system, or pushing your hardware to its limits through overclocking, the right thermal paste can make a significant difference. A premium compound can lower CPU temperatures by 5-15°C compared to stock thermal paste, potentially boosting performance and extending component lifespan.
In this comprehensive guide, we’ve tested and ranked the 15 best thermal pastes available in 2026. Our selections span budget-friendly options to premium compounds used by enthusiasts worldwide. We’ll also cover critical factors like electrical conductivity, application difficulty, and longevity so you can make an informed decision.
Looking for more cooling solutions? Check out our thermal grease comparison and thermal pad vs paste benchmarks.
Top 3 Best Thermal Pastes for 2026
Our top three picks represent the best thermal pastes for different use cases. The ARCTIC MX-6 takes the crown as the best all-around thermal paste with its #1 bestseller status, non-conductive formula, and 20% performance improvement over the legendary MX-4. For those wanting the latest technology, the ARCTIC MX-7 offers next-level performance with enhanced long-term stability. Overclocking enthusiasts should look to Thermal Grizzly Kryonaut, which delivers extreme thermal conductivity for demanding configurations.
Best Thermal Pastes in 2026 – Complete Comparison
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In-Depth Reviews: 15 Best Thermal Pastes
1. ARCTIC MX-6 – EDITOR’S CHOICE
ARCTIC MX-6 (4 g) - Ultimate Performance Thermal...
4g tube
Non-conductive formula
20% better than MX-4
#1 Bestseller
+ The Good
- 20% better performance
- Non-conductive
- Long-lasting
- #1 bestseller
- The Bad
- Thick consistency
- Slightly expensive
The ARCTIC MX-6 is the #1 bestseller in thermal paste for good reason. Delivering 20% better performance than its predecessor (the legendary MX-4), this compound represents the sweet spot between performance, safety, and value. Its non-electrically conductive and non-capacitive formula eliminates any risk of short circuits, making it safe for beginners and experts alike.
Users report significant temperature improvements over stock paste, with drops of 5-10°C being common. The thick consistency requires an X-pattern application method rather than manual spreading, but this design ensures optimal distribution under cooler pressure. With over 14,500 reviews averaging 4.7/5 stars, the MX-6 has proven its reliability across countless builds.
2. ARCTIC MX-7 – BEST NEW RELEASE
ARCTIC MX-7 (8 g) - Ultimate Performance Thermal...
8g tube
Latest generation
High filler content
No pump-out
+ The Good
- Next-level performance
- Long-term stability
- Non-conductive
- 8g value
- The Bad
- Cannot be spread manually
- Thick consistency
The ARCTIC MX-7 represents the latest generation of thermal paste technology from ARCTIC. With a performance-optimized dense and highly viscous consistency, the MX-7 delivers next-level thermal performance with high filler content for exceptional heat transfer. Its unique formulation prevents pump-out, dry-out, or bleeding, ensuring consistent performance over years of use.
Like the MX-6, the MX-7 is electrically non-conductive and non-capacitive, making it completely safe for all devices. The 8g tube provides excellent value for multiple applications. User reports indicate temperature drops of 4-7°C compared to previous thermal pastes.
3. Thermal Grizzly Kryonaut – BEST FOR OVERCLOCKING
Thermal Grizzly Kryonaut - 1 Gram - Extremly High...
1 gram
Extreme conductivity
For overclocking
Premium choice
+ The Good
- Extreme conductivity
- Long-lasting
- Easy application
- Market leader
- The Bad
- Expensive for 1g
- Not for GPUs
- Counterfeits exist
Thermal Grizzly Kryonaut is the market leader for extreme performance thermal paste. Designed specifically for demanding applications and overclocking, Kryonaut delivers exceptional thermal conductivity that doesn’t dry out even at 80°C. With over 57,700 reviews and a 4.7/5 star rating, it’s the go-to choice for enthusiasts pushing their hardware to the limit.
Warning: Counterfeit Kryonaut products have been reported in the market. Always purchase from authorized retailers and verify authenticity when possible.
4. ARCTIC MX-4 – BEST VALUE
ARCTIC MX-4 (4 g) - Premium Performance Thermal...
4g tube
Carbon microparticles
8-year durability
Budget friendly
+ The Good
- Excellent conductivity
- Non-conductive
- 8-year durability
- Easy to apply
- Great value
- The Bad
- Outperformed by MX-6/MX-7
The ARCTIC MX-4 is a legendary thermal paste that has earned over 101,000 reviews with a 4.8/5 star average. While the MX-6 and MX-7 have since been released, the MX-4 remains an excellent budget-friendly option that delivers reliable performance. Its carbon microparticle formula provides extremely high thermal conductivity without any electrical conductivity risks.
The MX-4 is famous for its 8-year durability, meaning you won’t need to reapply it for nearly a decade under normal use. Its ideal consistency makes it very easy to apply, even for first-time builders.
5. Noctua NT-H2 – PREMIUM PICK
Noctua NT-H2 3.5g, Thermal Computer Paste incl...
3.5g tube
Second generation
With 3 cleaning wipes
No cure time
+ The Good
- Long-term stability
- No cure time
- Includes wipes
- Non-conductive
- The Bad
- More expensive
- Pump-out on GPUs
- Messy consistency
Noctua is renowned for producing premium cooling components, and the NT-H2 thermal paste lives up to that reputation. As the second generation of the award-winning NT-H1, the NT-H2 features improved thermal conductivity while maintaining the ease of application that Noctua pastes are known for. The 3.5g tube includes 3 NA-CW1 cleaning wipes, adding excellent value.
The NT-H2 requires no cure time—instant results are achieved immediately after application. Users report 4-6°C temperature improvements over stock paste.
6. Noctua NT-H1 – BEST FOR MULTIPLE BUILDS
Noctua NT-H1 10g, Thermal Computer Paste (10g)
10g tube
150+ awards
Easy clean
9-60 applications
+ The Good
- 10g value
- 150+ awards
- Easy clean
- Long-lasting
- 9-60 applications
- The Bad
- Lower conductivity than premium
- Not for extreme overclocking
The Noctua NT-H1 is a renowned premium-grade thermal compound with over 150 awards and recommendations. The 10g tube is an excellent value for system builders or anyone who needs to complete multiple builds. Like the NT-H2, it’s easy to apply without spreading and can be cleaned with just a dry paper towel—no alcohol required.
The NT-H1 offers excellent long-term stability with a recommended usage time of up to 5 years.
7. Thermal Grizzly Kryonaut Extreme – EXTREME PERFORMANCE
Thermal Grizzly Kryonaut Extreme - 2 Gram...
2 grams
Extreme conductivity
For overclocking
12 applications
+ The Good
- Extreme conductivity
- Immediate drops
- Stable to 80°C
- Non-conductive particles
- The Bad
- Expensive
- Tricky to use
- Excessive for non-overclocking
For those who demand the absolute best, Thermal Grizzly Kryonaut Extreme delivers extreme thermal conductivity specifically designed for overclocking. This premium compound offers immediate temperature drops of 5-15°C compared to standard thermal pastes. The paste is stable up to 80°C and requires no settling-in period for full performance.
The Extreme formula uses non-conductive aluminum particles for safety, making it less risky than liquid metal alternatives.
8. Thermal Grizzly Duronaut – BEST LONGEVITY
Thermal Grizzly Duronaut - 6 Gram - Enhanced...
6 grams
Enhanced durability
Minimized pump-out
With spatula
+ The Good
- Long-term stability
- Superior conductivity
- Non-conductive
- Minimal pump-out
- With spatula
- The Bad
- Very thick
- Requires warming
- Learning curve
The Thermal Grizzly Duronaut is engineered for outstanding durability and long-term stability. Formulated with aluminum microparticles and zinc oxide nanoparticles, it delivers superior thermal conductivity while maintaining exceptional stability over time. The minimized pump-out effect ensures consistent performance for years without reapplication.
The Duronaut is electrically non-conductive for safe use on all components. The included TG Spatula Pro enables precise application.
9. Corsair TM30 – EASY APPLICATION
Corsair TM30 Performance Thermal Paste | Ultra-Low...
3 grams
Ultra-low impedance
With stencil
Non-conductive
+ The Good
- Ultra-low impedance
- Easy with stencil
- Non-conductive
- Long service life
- The Bad
- Viscosity concerns
- Not absolute best
The Corsair TM30 is a premium zinc oxide-based thermal compound with ultra-low thermal impedance. What sets it apart is the included application stencil and spreader, making installation foolproof for beginners and experienced builders alike. The non-conductive formula ensures safety, and the zero volatile compounds prevent drying or cracking over time.
Users report significant temperature improvements within 2°C of much more expensive premium brands.
10. Cooler Master CryoFuze – HIGH CONDUCTIVITY
Cooler Master CryoFuze Premium Performance Thermal...
2 grams
14W/mK conductivity
Nanoparticle formula
Non-moisture
+ The Good
- High 14W/mK conductivity
- Excellent reductions
- Non-corrosive
- Anhygroscopic
- The Bad
- Very thick consistency
- Difficult to spread
- Challenging for beginners
The Cooler Master CryoFuze utilizes a nanoparticle formula with an impressive K value of 14W/mK thermal conductivity. This high-performance compound is anhygroscopic (non-moisture absorbent) and electrically insulated for safe application. The non-corrosive and oxidation-resistant formula ensures long-lasting performance.
Users report excellent temperature reductions with the CryoFuze, though the very thick and dry consistency makes it challenging to spread without heating.
11. Thermal Grizzly Conductonaut – BEST LIQUID METAL
Thermal Grizzly Liquid Metal Thermal Paste...
1 gram
Liquid metal
Extreme performance
Not for aluminum
+ The Good
- Ultra-high conductivity
- 10-20°C drops
- Long-lasting
- Eutectic alloy
- The Bad
- Electrically conductive
- Not for aluminum
- High risk
- Difficult to use
Thermal Grizzly Conductonaut is a liquid metal thermal paste that achieves ultra-high thermal conductivity for extreme performance. The specially formulated eutectic alloy of tin, gallium, and indium delivers temperature improvements of 10-20°C compared to traditional pastes.
Critical Warning: Conductonaut is electrically conductive and requires careful application to avoid contact with electrical components. It cannot be used with aluminum heatsinks as it causes corrosion.
12. Thermal Grizzly PhaseSheet PTM – BEST PHASE CHANGE
Thermal Grizzly - PhaseSheet PTM (50x40mm)- High...
50x40mm
Phase change
Non-conductive
Permanent
+ The Good
- No drying
- No pump-out
- Easy application
- Non-conductive
- Permanent performance
- The Bad
- Expensive
- Needs thermal cycles
- Can rip
- Hard to remove
The Thermal Grizzly PhaseSheet PTM is a high-performance thermal pad utilizing phase change material (PCM) technology. Solid at room temperature for easy application, it liquefies from 45°C to create an optimal thermal interface. Unlike traditional thermal paste, PhaseSheet PTM doesn’t dry out and exhibits no pump-out effect.
It’s non-electrically conductive for safety and requires approximately 10 thermal cycles to achieve stable thermal conductivity.
13. PTM7950 Phase Change Pad – BUDGET PHASE CHANGE
PTM7950 40x80x0.25mm Phase Change GPU Thermal Pad...
40x80mm
8.5W/mK
Phase change
With tools
+ The Good
- Longer life
- 10-20°C drops
- Easy solid application
- Reliable testing
- The Bad
- Authenticity questions
- Difficult for beginners
- Needs 2-3 days
The JOYJOM PTM7950 Phase Change Thermal Pad offers excellent value for phase change material performance. With thermal conductivity of 8.5 W/m.K and a phase change temperature of 45°C, it delivers temperature drops of 10-20°C reported by users.
The solid form at room temperature makes application easy, and the package includes application tools (screwdriver, wipe, spatula, gloves) for complete installation.
14. BSFF Thermal Paste – BUDGET PICK
BSFF Thermal Paste, 1.8g with Toolkit CPU Paste...
1.8g with toolkit
Carbon based
Non-conductive
5+ years
+ The Good
- Non-conductive
- High conductivity
- 5+ years
- Easy for beginners
- The Bad
- Spreader too short
- Quite thick
The BSFF Thermal Paste offers excellent value as a budget-friendly option. The carbon microparticle-based formula provides high thermal conductivity without the risk of electrical conductivity. Metal-free and non-conductive, it’s safe for all users. The 5+ year durability ensures long-lasting performance without reapplication.
The paste includes a toolkit (spreader, wipes, etc.) for easy installation.
15. GANNEL GT-1 Silver – BEST TOOLKIT INCLUDED
GENNEL 2-Pack GT-1 Silver CPU Thermal Paste...
2-pack 1g each
-50C to 240C
With toolkit
Non-conductive
+ The Good
- Wide temp range
- Easy to apply
- Full toolkit
- Non-conductive
- 2-pack value
- The Bad
- Small 1g tubes
The GANNEL GT-1 Silver is a 2-pack thermal paste kit that stands out for its comprehensive toolkit. Each 1g tube is accompanied by wipes, finger cots, and spatulas for complete application. The carbon and silicon compound formula delivers high thermal conductivity with a wide working temperature range from -50°C to 240°C.
The non-conductive, non-volatile, and flame-retardant formula ensures safe application for CPUs, GPUs, and gaming consoles.
How to Choose the Best Thermal Paste
Thermal Conductivity Explained
Thermal conductivity measures how effectively a material transfers heat, expressed in W/mK (watts per meter-kelvin). Higher values indicate better heat transfer. Budget pastes typically offer 3-5 W/mK, while premium compounds can exceed 10 W/mK. However, real-world performance depends on proper application and cooler pressure.
Electrically Conductive vs Non-Conductive
Non-conductive pastes (ARCTIC MX series, Noctua NT-H1/H2) are safe for all users. They won’t cause short circuits if accidentally applied to motherboard components.
Electrically conductive pastes (Thermal Grizzly Conductonaut liquid metal) require extreme caution. They can permanently damage components if misapplied. Only experienced users should consider these, and never use them with aluminum heatsinks.
Tip: When in doubt, always choose non-conductive paste. The performance difference is rarely worth the risk for most users.
Application Methods and Ease of Use
-
Pea-sized dot: Works well for most pastes with pressure-mounted coolers
-
X-pattern: Required for thick pastes like ARCTIC MX-6/MX-7 that shouldn’t be manually spread
-
Line method: For direct-die applications or rectangular CPU dies
-
Spreading: Only recommended for low-viscosity pastes with included spreaders
Longevity and Pump-Out Effect
Quality thermal paste should last 3-8 years before needing replacement. The pump-out effect occurs when thermal cycling causes paste to be pushed out from between the CPU and heatsink, degrading performance over time. Premium pastes like Noctua NT-H2 and Thermal Grizzly Duronaut are specifically formulated to minimize this effect.
Laptop vs Desktop Considerations
Laptops: Thin and spreadable pastes work best due to tight clearances. Thermal pads or phase change materials (PTM7950, PhaseSheet PTM) are excellent for laptops as they won’t pump out. Liquid metal is popular for laptops but carries high risk if not applied perfectly.
Desktops: You have more flexibility with paste consistency. Thicker pastes like ARCTIC MX-6/MX-7 work well with desktop cooler pressure. Consider your cooler mounting pressure when selecting paste viscosity.
Liquid Metal Safety Warnings
Liquid metal thermal paste (Thermal Grizzly Conductonaut) offers the best performance but requires special precautions:
-
Never use with aluminum heatsinks—causes galvanic corrosion
-
Apply sparingly—less is more with liquid metal
-
Mask surrounding components with tape to prevent splatter
-
Use in a well-ventilated area
-
Consider professional installation for expensive hardware
Counterfeit Detection Tips
Counterfeit thermal paste is a growing problem, especially for popular brands like Thermal Grizzly Kryonaut. To avoid fake products:
-
Purchase only from authorized retailers or Amazon directly
-
Check for authenticity features (ARCTIC includes verification codes)
-
Be suspicious of prices significantly below market value
-
Verify packaging quality—counterfeits often have poor printing
-
Check reviews for recent reports of counterfeits
For more on optimal temperatures and monitoring, see our guide on optimal CPU temperature.
Final Thoughts on the Best Thermal Pastes
Choosing the right thermal paste depends on your specific needs, experience level, and budget. For most users, the ARCTIC MX-6 offers the best balance of performance, safety, and value as the #1 bestseller. Enthusiasts seeking cutting-edge performance should consider the ARCTIC MX-7 or Thermal Grizzly Kryonaut. For those wanting the absolute best regardless of risk, Thermal Grizzly Conductonaut liquid metal delivers unmatched results.
Remember that proper application is just as important as paste selection. Take your time, follow the manufacturer’s instructions, and don’t apply more paste than necessary. With the right paste and technique, you can achieve significant temperature improvements that boost performance and extend component lifespan.
For more cooling solutions, explore our CPU heatsink recommendations and GPU thermal pads guides.
