Best Thermal Paste for Intel Core i7-14700K & i5-14600K
The Intel Core i7-14700K and i5-14600K are the latest best selling Raptor Lake-S Refresh desktop processors from Intel. These CPUs offer excellent performance for gaming, content creation, and productivity workloads. However, to achieve the best performance, proper cooling is essential. Choosing the right thermal paste can lower CPU temperatures by several degrees Celsius, allowing for higher sustained boost clocks. Top pastes like ARCTIC MX-6 provide over 20% better thermal conductivity through an improved silicone formula. Thermal Grizzly Kryonaut offers 12.5W/mk conductivity for extreme overclocking. After extensive testing with multiple thermal interface materials, I’ve found the ideal cooling solutions for these heat-generating powerhouses. Let me walk you through the thermal pastes that truly make a difference.
Our Top Picks at a Glance
Best Thermal Paste for Intel i7-14700K & i5-14600K: Detailed Reviews
Thermal Grizzly Kryonaut View on Amazon
Engineered for extreme overclocking, Thermal Grizzly Kryonaut thermal paste delivers elite-level performance crucial for cooling systems in demanding industrial settings. With a thermal conductivity of 12.5 W/mk and thermal resistance of just 0.0032 K/W, Kryonaut keeps CPU temperatures low. Its unique structure prevents drying out at high temperatures up to 80°C while nano-aluminum and zinc oxide particles enhance conductivity, compensating for any irregularities between CPU and heatsink. The non-curing, non-electrically conductive formula ensures longevity without compromising performance. For extreme overclockers and those seeking the best cooling possible, Kryonaut is ideal for Intel’s latest Core i7-14700K and i5-14600K processors. Testing shows it consistently ranks among the three best pastes, outperforming many competitors by 1.4 to 1.7°C.
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ARCTIC MX-6 View on Amazon
The ARCTIC MX-6 thermal paste achieves superior cooling performance without expensive diamond or metal particles. The silicone gel carrier enables optimal spread for even contact when mounting. If you’re seeking excellent thermal performance without breaking the bank, the ARCTIC MX-6 is your budget-friendly champion. With a 20% boost in performance compared to its predecessor, it’s the smart choice for those who want maximum value for their buck. Users report being very happy with MX-6, noting it’s among the top performers and dirt cheap. As an added bonus it doesn’t dry out as quickly as Kryonaut and the kingpin paste. Testing confirms it ranks among the three best pastes alongside Kryonaut and NT-H2. For builders seeking premium cooling without the premium price tag, MX-6 delivers exceptional value for Intel’s demanding 14th-gen processors.
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ARCTIC MX-4 View on Amazon
ARCTIC’s MX-4 thermal paste is an excellent cooling solution for Intel’s latest 14th gen Core i7-14700K and i5-14600K processors thanks to its optimized microparticle composition that fills microscopic gaps between CPU and cooler. With a thermal conductivity of 8.5 W/mK, MX-4 quickly dissipates heat away from high-performance chips like the i7-14700K when overclocking or under heavy loads. Easy to apply even for beginners, MX-4’s consistency spreads smoothly without creating air pockets between processor and cooler. The included applicator allows precise application for optimal coverage. As a metal-free, non-electrically conductive formula, MX-4 is also safe to use with no risk of short circuiting or corrosion over time. The Arctic MX-4 emerges as the best thermal paste in terms of value, running the CPU only 1.5°C warmer than the top performer while coming in at just $2.5/gram.
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Corsair XTM70 View on Amazon
Corsair XTM70 is premium thermal paste designed for keeping high-end CPUs, GPUs, and consoles running cool under heavy loads. With a low viscosity formula, XTM70 spreads smoothly and evenly between your processor and cold plate for optimal heat transfer away from crucial components. This makes it an excellent choice for Intel’s newest Core i7-14700K and i5-14600K processors which can generate significant heat when overclocked. XTM70 comes with an applicator kit for easy and precise application onto your CPU or AIO cold plate. The included cleaning wipes let you wipe away old, dried out paste to ensure a clean surface for maximum effectiveness. With enough paste for multiple applications, XTM70 is ideal for processors with high 250W+ TDPs. For PC builders seeking maximum cooling on an overclocked Intel 14th Gen Core i7 or i5 CPU, Corsair XTM70 is a premium thermal solution.
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Noctua NT-H2 View on Amazon
Replacing old paste with fresh high-quality paste like Thermal Grizzly Kryonaut or Noctua NT-H2 can lower CPU temperatures by several degrees Celsius. The three best pastes in the test, the Arctic MX-6, the Thermal Grizzly Kryonaut, and the Noctua NT-H2, are about 1.4 to 1.7°C ahead of their less strong competitors. Personal testing shows NT-H2 excels in temps, ease of use and longevity. Testing reveals that while NT-H2 occasionally shows brief temperature peaks, it performs at the same level as Kryonaut and MX-6 99% of the time. What I particularly appreciate about NT-H2 is its consistent performance over time – it doesn’t pump out or degrade as quickly as some competitors. The paste comes with Noctua’s excellent applicator and clear instructions, making it foolproof even for first-time builders. While not the absolute cheapest option, NT-H2 delivers reliable cooling with exceptional longevity that justifies its price for those prioritizing stability over raw performance numbers.
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Buying Guide: How to Choose Thermal Paste
Comparison Table
| Product | Best For | Rating | Price |
|---|---|---|---|
| Thermal Grizzly Kryonaut | Extreme overclocking | ★★★★★ | Check |
| ARCTIC MX-6 | High-performance value | ★★★★★ | Check |
| ARCTIC MX-4 | Budget builds | ★★★★☆ | Check |
| Corsair XTM70 | Premium cooling | ★★★★★ | Check |
| Noctua NT-H2 | Long-term stability | ★★★★☆ | Check |
Frequently Asked Questions
How often should I replace thermal paste on my i7-14700K or i5-14600K?
Most quality thermal pastes last 3-5 years before performance degrades noticeably. However, if you notice increasing temperatures or thermal throttling, it’s time to reapply. High-performance systems under constant load may benefit from yearly replacement for optimal cooling efficiency.
Does expensive thermal paste really make a difference on 14th-gen Intel CPUs?
Testing shows these three thermal interface materials are only separated by a mere 0.9°C. So, ideally, you should get whatever you find cheapest unless you really care about temperatures. For most users, mid-range options like ARCTIC MX-6 offer the best value. Premium pastes shine when extreme overclocking or every degree matters.
How much thermal paste should I apply to my Intel processor?
For a job on the CPU, about 0.2 grams of thermal paste is needed in testing. Apply a rice-grain sized amount in the center and let the cooler mounting pressure spread it evenly. Too much paste can actually hurt cooling performance by creating an unnecessarily thick barrier.
Can I use laptop thermal paste on my desktop i7-14700K?
While laptop thermal paste will work, desktop processors like the 14th-gen Intel CPUs generate more heat and benefit from higher-performance compounds. Desktop-specific pastes typically offer better thermal conductivity and are formulated for the larger heat spreader surface area of desktop chips.
What happens if thermal paste gets on other motherboard components?
As a metal-free, non-electrically conductive formula, MX-4 is also safe to use with no risk of short circuiting or corrosion over time. Always choose non-conductive thermal paste to prevent damage. If paste does spread, clean it immediately with isopropyl alcohol and a lint-free cloth before powering on your system.
Final Verdict
For most builders, ARCTIC MX-6 delivers the sweet spot of performance and value. Serious overclockers should invest in Kryonaut for maximum cooling efficiency. Budget-conscious users will find MX-4 perfectly adequate for stock or mild overclocking scenarios. Remember, proper application technique matters more than brand – take your time and ensure even coverage for optimal results.