Best Thermal Paste for Intel Core i9-14900K & 14900KF

The Intel Core i9-14900K and i9-14900KF are the latest flagship desktop processors from Intel, built on the Raptor Lake Refresh architecture. These CPUs offer up to 24 cores and 32 threads and can reach boost clocks up to 6.2 GHz, making them extremely powerful for content creation, gaming, and other demanding workloads.

However, with great power comes great heat output. The i9-14900K/KF has a 125W base power draw and can exceed 253W under full load. Effective cooling is critical to allow these CPUs to sustain high clocks and performance. One important but often overlooked component of a good CPU cooler is the thermal interface material or thermal paste applied between the CPU and cooler.

Choosing the right thermal paste can make a noticeable difference in temperatures and stability when overclocking or running intensive tasks on an i9-14900K/KF system. In this guide, we’ll cover the best thermal pastes to use with the Core i9-14900K and i9-14900KF to maximize cooling potential.

1. Thermal Grizzly Kryonaut Extreme The High Performance Thermal Paste – Check Price at Amazon US,UK,CA/Newegg

Engineered specifically for extreme overclocking, Thermal Grizzly Kryonaut Extreme lives up to its name as a premium thermal paste designed to push hardware to the limits. With an exceptional thermal conductivity rating of 14.2 W/mk, Kryonaut Extreme leverages graphene, ceramics, and aluminum oxide particles to rapidly transfer heat away from high-TDP components like the Intel i9-14900K/KF. Real-world testing shows it outperforms even top-tier pastes by 1-2°C. Kryonaut Extreme really shines for sub-zero cooling like liquid nitrogen overclocking, with impressive stability down to -250°C. But it’s also a great choice for ambient cooling methods like high-end air or water. The paste is engineered for longevity with a 10-year shelf life and 5 years of use before drying. For enthusiasts aiming to achieve record-setting overclocks on Intel’s Raptor Lake flagship, Kryonaut Extreme is purpose-built to extract every ounce of thermal headroom. Just be prepared to pay a premium price for such bleeding-edge performance.

Features:

• 14.2W/(m·K) THERMAL CONDUCTIVITY – Extremely high conductivity, perfect for even the most demanding configurations.
• EASY TO USE – A syringe and a specially constructed applicator for spreading thermal grease is included.
• LONG ACTION – Kryonaut thermal paste’s unique structure allows for long-lasting effectiveness, even at temperatures up to 80 degrees Celsius without drying out.
• OUTSTANDING RESUTLS – Using this thermal solution can immediately lower temperatures, reducing equipment noise and improving user comfort.
• TOP PERFORMING – Confirmed by multiple tests, the preferred option satisfies the highest quality criteria for both standard computer users and enthusiastic overclocking fans.

2. ARCTIC MX-6 Ultimate Performance Thermal Paste – Check Price at Amazon US,UK,CA/Newegg

With its specially engineered carbon microparticle filler, ARCTIC’s MX-6 thermal paste delivers elite-tier performance for cooling demanding Intel CPUs like the Core i9-14900K/KF. It boasts an impressive thermal conductivity rating of 11 W/mK, rivaling and even exceeding more expensive compounds. Independent testing shows the MX-6 trades blows with the top pastes on the market, keeping the i9-14900K/KF just 1-3°C warmer at most versus premium options costing twice as much. The toothpaste-like viscosity spreads efficiently to fully cover the IHS while the non-curing formula remains stable long-term. Durability is excellent with an 8-year shelf life. While a tad thicker than some pastes, the MX-6 is still easy to apply for beginners and experts alike. For those seeking no-compromise cooling performance on Intel’s hottest new CPUs without breaking the bank, ARCTIC’s MX-6 represents an outstanding balance of price and performance. Enthusiasts can rely on it for stable everyday overclocks and intensive workloads without paying for diminishing returns of the priciest pastes.

Features:

• 20% BETTER PERFORMANCE: With its improved composition, the ARCTIC MX-6 has a measurably lower thermal resistance than the MX-4
• PROVEN QUALITY: With over 20 years of experience in the PC cooling market, our focus was on improved performance, versatile application possibilities and an easy-to-use consistency
• RISK-FREE APPLICATION: MX-6 is neither electrically conductive nor capacitive. This eliminates the risk of short circuits or discharges
• VERSATILE APPLICATION: With its new composition, the MX-6 is suitable for many application scenarios. Thanks to its viscosity, it is also suitable for direct-die cooling scenarios for GPUs of graphics cards or console processors
• 100 % ORIGINAL DUE TO AUTHENTICITY CHECK: Due to our Authenticity Check, the authenticity of each individual product can be verified

3. Corsair XTM70 Extreme Performance Thermal Paste – Check Price at Amazon US,UK,CA/Newegg

Corsair’s XTM70 thermal paste offers a compelling high-performance option for cooling Intel’s power-hungry i9-14900K/KF. Leveraging an advanced proprietary composite of zinc oxide, aluminum oxide, and boron nitride, the XTM70 achieves thermal conductivity up to 11.2 W/mK per Corsair’s specs. Real-world testing shows the XTM70 going toe-to-toe with top-tier pastes, keeping the i9-14900K/KF just 2-3°C warmer than offerings that cost twice as much. The paste thickness strikes a nice balance – just viscous enough for easy spread application while still thin enough to efficiently transfer heat from die to heatsink. Durability is also a highlight with an impressive 10-year shelf life. For enthusiasts seeking maximum overclocks on Intel’s new flagship CPUs, the XTM70 proves you don’t need to pay a huge premium for excellent thermals. While a tad pricier than budget pastes, Corsair’s expertise in PC cooling shines through in the XTM70’s blend of performance, stability, and value. It’s a great choice for high-end air or liquid cooling setups.

Features:

• Keep your high-end CPU, GPU, or console cool with premium thermal paste that effectively transfers heat between your processor and cold plate.
• Low viscosity means XTM70 spreads evenly and cleanly with the included applicator kit, for easy application and peak thermal transfer on an Intel or AMD CPU or AIO cold plate.
• Wipe away old paste from your processor and AIO cold plate with three included cleaning wipes.
• Ideal for high-performance processors up to 250W TDP and higher.
• Contains more than enough for multiple applications.

4. Thermal Grizzly Kryonaut Thermal Paste – Check Price at Amazon US,UK,CA/Newegg

When only the best will do, Thermal Grizzly Kryonaut stands as the cream of the crop thermal paste for maxing out cooling on the Intel Core i9-14900K/KF. Its exceptionally high thermal conductivity rating of 12.5 W/mK is achieved through a proprietary graphene/ceramic particle filler engineered for rapid heat transfer. Real-world testing shows Kryonaut outperforming other premium pastes by up to 2°C, a significant margin that can make or break peak overclocks. While on the thicker side, Kryonaut spreads reasonably well and covers the large i9-14900K/KF IHS evenly for full contact. It really shines in durability with a 10-year shelf life and 5 years of use, easily outlasting cheaper pastes. For enthusiasts and overclockers seeking to push Intel’s Raptor Lake flagships to the bleeding edge, Kryonaut’s premium performance is worth the price. While cheaper options come close, none offer the complete package of top-tier thermals, longevity, and ease of use like Kryonaut. It’s the undisputed king of thermal pastes to exploit the i9-14900K/KF’s full cooling potential.

Features:

• 12.5W/(m·K) THERMAL CONDUCTIVITY – Very high conductivity, perfect for even demanding configurations.
• EASY TO USE – A specially constructed spatula for spreading thermal grease is included.
• LONG ACTION – Kryonaut thermal paste’s unique structure allows for long-lasting effectiveness, even at temperatures up to 80 degrees Celsius without drying out.
• OUTSTANDING RESULTS – Using this thermal solution can immediately lower temperatures, reducing equipment noise and improving user comfort.
• TOP PERFORMING – Confirmed by multiple tests, the preferred option satisfies the highest quality criteria for both standard computer users and enthusiastic overclocking fans.

5. ARCTIC MX-4 Premium Performance Thermal Paste – Check Price at Amazon US,UK,CA/Newegg

With its compelling blend of performance, value, and ease-of-use, ARCTIC’s MX-4 thermal paste is a top choice for cooling Intel’s demanding i9-14900K/KF CPUs. It leverages a proprietary carbon micro-particle formula to achieve excellent thermal conductivity of 8.5W/mK. While not matching the peak numbers of pricier pastes, real-world testing shows MX-4 keeping the i9-14900K/KF just 2-3°C warmer – an impressively small difference considering MX-4 costs nearly half as much. The consistency is perfectly balanced for easy spread application to fully cover the large CPU IHS. Longevity is another highlight with an exceptional 8-year shelf life. For enthusiasts seeking reliable performance for everyday overclocks, MX-4 is a great value. It avoids diminishing returns of more expensive compounds while outperforming budget pastes. ARCTIC cuts no corners – MX-4 may not claim benchmark-topping numbers, but its real-world thermals, longevity, and ease-of-use make it an excellent choice for cost-conscious cooling of the i9-14900K/KF.

Features:

• WELL PROVEN QUALITY: The design of our thermal paste packagings has changed several times, the formula of the composition has remained unchanged, so our MX pastes have stood for high quality
• EXCELLENT PERFORMANCE: ARCTIC MX-4 thermal paste is made of carbon microparticles, guaranteeing extremely high thermal conductivity. This ensures that heat from the CPU/GPU is dissipated quickly & efficiently
• SAFE APPLICATION: The MX-4 is metal-free and non-electrical conductive which eliminates any risks of causing short circuit, adding more protection to the CPU and VGA cards
• 100 % ORIGINAL THROUGH AUTHENTICITY CHECK: Through our Authenticity Check, it is possible to verify the authenticity of every single product
• EASY TO APPLY: With an ideal consistency, the MX-4 is very easy to use, even for beginners, Spatula incl.

6. Cooler Master MasterGel Maker Ultra-High Performance Thermal Paste – Check Price at Amazon US,UK,CA

Boasting an impressive advertised thermal conductivity of 11W/mK, Cooler Master’s MasterGel Maker proves you don’t need ultra-premium pricing for elite-tier performance when cooling demanding CPUs like the Intel Core i9-14900K/KF. Its specialized hybrid nano-particle compound rivals and even beats more expensive options in real-world testing, keeping the i9-14900K/KF just 1-2°C warmer. The toothpaste-like texture spreads smoothly across the large IHS for full coverage and optimal heat transfer. Durability is surprisingly excellent for the price with a 8-year shelf life. For cost-conscious enthusiasts seeking maximum bang for the buck, MasterGel Maker represents amazing value. It skips the diminishing returns of high-end pastes while handily outperforming budget compounds. When paired with a beefy cooler, MasterGel Maker unlocks ample overclocking headroom and workload stability for the i9-14900K/KF. While pricier pastes edge out a slight performance advantage, Cooler Master’s expertise shines through in the MasterGel Maker’s impressive balance of thermals, longevity, and affordability.

Features:

• EXTREME THERMAL CONDUCTIVITY – MasterGel Maker (11 W/mK) features a nano-tech compound for premium thermal conductivity between the CPU or GPU and cooler contact plate; This level of thermal paste is ideal for overclocking or extreme gaming
• ZERO ELECTRICAL CONDUCTIVITY – MasterGel eliminates the risk of electrical transmission to protect hardware such as gaming motherboards or graphics cards against the risk short circuiting
• EASY APPLICATION – The Cooler Master patented flat-nozzle syringe makes the application of the thermal grease super easy, precise and even: This innovative design allows the compound to be spread smoothly in seconds without any mess
• MASTERING COOLING – Cooler Master’s MasterGel series allows users to replace standard in-box thermal pastes with a dramatically more effective product which in turn augments overall cooling performance; Works with both liquid and air cooling systems
• CLEANING CLOTH – Includes a cleaning wipe to remove any leftover grease on the processor or graphics card; A large cap keeps the thermal paste syringe well-sealed and clean when not in use; 1.5 ml, Specific Gravity 2.5 g/cm³ (25°C); Grey

Conclusion:

Choosing the right thermal paste can make a significant difference in cooling performance when overclocking powerful CPUs like the Intel Core i9-14900K/KF. Premium pastes with graphene, ceramic, or carbon microparticle fillers like Thermal Grizzly Kryonaut Extreme, ARCTIC MX-6, and Corsair XTM70 offer the highest thermal conductivity for maxing out overclocks. But more affordable yet still high performance pastes like standard Kryonaut, ARCTIC MX-4, and Cooler Master MasterGel Maker come surprisingly close in real-world cooling for far less money. Ultimately, enthusiasts seeking every last drop of thermal headroom will want to invest in the top tier like Kryonaut Extreme. But for excellent all-around performance at better prices, the midrange pastes make an outstanding choice. Regardless of budget, applying the right amount of a quality paste makes a big difference compared to lower-end compounds or even no paste at all. Any of the recommended options here will help unleash the full potential of Intel’s newest flagship CPUs.