Best Thermal Paste for CPU: Top 10 Recommendations 2024
Choosing the best thermal paste for CPU can significantly impact your processor's temperature and performance. Whether you're building a new PC, replacing dried-out paste, or seeking maximum cooling efficiency, this comprehensive guide covers the top thermal compounds available in 2024.
Quick Recommendations
Best Overall
Thermal Grizzly Kryonaut
Best Value
Arctic MX-4
Best Performance
Thermal Grizzly Conductonaut
Top 10 Best Thermal Paste for CPU 2024
1. Thermal Grizzly Kryonaut
The best thermal paste for CPU overall, Kryonaut offers exceptional performance without the risks of liquid metal. Based on a unique structure that prevents thermal throttling up to 80°C.
Pros:
- • Excellent thermal conductivity (12.5 W/mK)
- • Non-conductive and safe to use
- • Long-term stability
- • Easy application
Cons:
- • Higher price point
- • Small tube sizes
- • Can dry out faster than ceramic pastes
2. Arctic MX-4
The best value thermal paste for CPU applications. MX-4 provides reliable performance with excellent longevity and comes in larger quantities for multiple applications.
Pros:
- • Excellent price-to-performance ratio
- • 8-year durability rating
- • Large 4g tube
- • Non-capacitive and non-conductive
Cons:
- • Lower thermal conductivity (8.5 W/mK)
- • Not the absolute best performer
- • Thicker consistency
3. Noctua NT-H1
A trusted choice for enthusiasts, NT-H1 offers consistent performance and proven reliability. Popular among users seeking dependable thermal paste for CPU cooling.
Pros:
- • Proven track record
- • Easy to work with
- • No curing time required
- • Consistent performance
Cons:
- • Moderate thermal conductivity
- • More expensive than MX-4
- • Performance behind newer compounds
4. Thermal Grizzly Conductonaut (Liquid Metal)
⚠️ Expert Only: Liquid metal is conductive and can damage components if misapplied. Not recommended for aluminum heatsinks.
The ultimate performance thermal paste for CPU applications. Conductonaut offers unmatched thermal conductivity but requires expertise and caution during application.
Pros:
- • Highest thermal conductivity (73 W/mK)
- • 5-10°C temperature improvements
- • Long-term stability
- • Ultimate performance
Cons:
- • Electrically conductive (dangerous)
- • Very expensive
- • Expert application required
- • Not compatible with aluminum
5. Cooler Master MasterGel Maker
An excellent budget option that delivers solid performance. MasterGel Maker provides good value for those seeking reliable thermal paste for CPU without premium pricing.
Pros:
- • Very affordable
- • Large quantity (4g)
- • Non-conductive formula
- • Easy application
Cons:
- • Lower thermal conductivity
- • Performance lags behind premium options
- • Less refined formula
Thermal Paste Buying Guide
Types of Thermal Paste
Ceramic-Based
- • Non-conductive and safe
- • Moderate performance
- • Affordable pricing
- • Examples: MX-4, NT-H1
Metal-Based
- • Higher thermal conductivity
- • Premium performance
- • More expensive
- • Examples: Kryonaut, NT-H2
Liquid Metal
- • Ultimate performance
- • Electrically conductive
- • Expert application required
- • Examples: Conductonaut, Liquid Ultra
Key Specifications to Consider
| Specification | What It Means | Good Range |
|---|---|---|
| Thermal Conductivity | Heat transfer efficiency (W/mK) | 8-15 W/mK (standard) |
| Viscosity | Paste thickness/spreadability | Medium consistency |
| Operating Temperature | Safe temperature range | -50°C to 150°C+ |
| Durability | Longevity before replacement | 3-8 years |
Choosing the Right Thermal Paste
For Beginners
Recommended: Arctic MX-4 or Noctua NT-H1
- • Non-conductive and safe
- • Easy to apply and clean
- • Good performance and value
- • Forgiving application process
For Enthusiasts
Recommended: Thermal Grizzly Kryonaut
- • Premium performance
- • Excellent thermal conductivity
- • Worth the higher cost
- • Ideal for overclocking
For Extreme Performance
Recommended: Thermal Grizzly Conductonaut (Liquid Metal)
- • Ultimate thermal conductivity
- • 5-10°C temperature improvement
- • Requires expertise and caution
- • Not for beginners
Application Tips and Best Practices
Before You Start
- 1. Gather tools: Isopropyl alcohol (90%+), lint-free cloths, and your chosen thermal paste
- 2. Power down system: Ensure computer is completely shut down and unplugged
- 3. Remove old paste: Clean both CPU and cooler surfaces thoroughly
- 4. Check surface flatness: Inspect for any damage or warping
Application Method
- 1. Apply small amount: Use rice grain size for most CPUs
- 2. Center placement: Place dot in the center of the CPU
- 3. Install cooler: Apply firm, even pressure
- 4. Secure mounting: Tighten in cross pattern
- 5. Test temperatures: Monitor for first few days
Best Thermal Paste for CPU: Final Recommendations
Best Overall: Thermal Grizzly Kryonaut - Premium performance with safety
Best Value: Arctic MX-4 - Excellent performance per dollar
Best for Beginners: Noctua NT-H1 - Proven reliability and ease of use
Best Performance: Thermal Grizzly Conductonaut - Ultimate cooling (experts only)
Best Budget: Cooler Master MasterGel Maker - Solid performance, low cost