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10 Best Thermal Paste For Cpu 2026 in the United States

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Our Top Picks

#1

Winner

Corsair XTM70 Extreme Performance Thermal Paste, 3g for Intel & AMD Processors up to 250W+ TDP - Low Viscosity, Easy Application, Three Included Cleaning Wipes and Applicator Kit for Desktop

Rating
10.0
Chosen by1,370
Thermal Conductivity
Viscosity
Longevity and Durability

Most important from
495 reviews

Thermal Conductivity
Delivers exceptional cooling performance for high-powered CPUs, keeping temperatures low even under intense workloads.
Viscosity
The low viscosity allows for smooth and easy application, ensuring optimal coverage and efficient heat transfer.
Longevity and Durability
Maintains effectiveness over a long period under heavy load, providing lasting reliability.
Ease of Application
Includes a unique application template that guarantees precise and consistent spreading of the paste for best results.

The Corsair XTM70 Extreme Performance Thermal Paste is designed to keep high-end CPUs, GPUs, and consoles cool, especially those with power ratings up to and above 250 watts. Its standout feature is low viscosity, which means the paste spreads smoothly and evenly, helping to ensure efficient heat transfer from your processor to the cooler. This makes application easier and neater, especially with the included applicator kit. Additionally, the package comes with three wipes to clean off old thermal paste, which is a helpful touch for a thorough and clean installation.

The paste contains copper, known for good thermal conductivity, so it effectively transfers heat away from the processor. It’s made for desktop use and supports both Intel and AMD processors, making it versatile. One small drawback is that while it is ideal for CPUs with higher power consumption, users with lower-powered or more basic systems might find it overkill and potentially more expensive than simpler options. Care is needed during application to avoid contact with electrical components.

Premium pastes like this tend to remain effective for a good period before needing replacement. The 3-gram amount included is more than enough for multiple applications, which is practical for repeated use or future upgrades. If you’re looking for a reliable, easy-to-apply, and effective thermal paste for high-performance desktop CPUs or gaming rigs, the Corsair XTM70 is a solid choice. Its ease of use and cleaning supplies make it beginner-friendly while meeting the needs of demanding processors.

Rating
10.0
Chosen by1,370
Thermal Conductivity
Viscosity
Longevity and Durability

Most important from
495 reviews

Thermal Conductivity
Delivers exceptional cooling performance for high-powered CPUs, keeping temperatures low even under intense workloads.
Viscosity
The low viscosity allows for smooth and easy application, ensuring optimal coverage and efficient heat transfer.
Longevity and Durability
Maintains effectiveness over a long period under heavy load, providing lasting reliability.
Ease of Application
Includes a unique application template that guarantees precise and consistent spreading of the paste for best results.
#2

Thermal Grizzly - Duronaut - 6 Gram - Enhanced Durability & High Performance Thermal Paste - for Maximum Conductivity While Overclocking CPU/GPU/PS4/PS5/Xbox with 12 Cleaning Wipes 6 Wet & 6 Dry

Rating
9.1
Thermal Conductivity
Viscosity
Longevity and Durability

Most important from
100 reviews

Thermal Conductivity
Delivers exceptional heat transfer that significantly lowers CPU and GPU temperatures even under heavy loads.
Viscosity
The thick consistency can make precise application a bit tricky, especially for those new to installing thermal paste.
Longevity and Durability
Offers outstanding durability without hardening or losing effectiveness over time, reducing the need for frequent reapplication.
Ease of Application
Includes generous cleaning wipes that help prepare surfaces for optimal adhesion and a clean, effective application.

The Thermal Grizzly Duronaut thermal paste is designed for users looking for long-lasting, high-performance cooling solutions, especially if you plan to overclock your CPU, GPU, or gaming consoles like PS5 or Xbox. It stands out with excellent thermal conductivity thanks to its special mix of aluminum microparticles and zinc oxide nanoparticles, which helps keep your components cooler by efficiently transferring heat. One major benefit is its exceptional durability — it won’t harden or lose effectiveness over time, meaning you won’t need to reapply it often. It’s also electrically safe, so you can apply it near sensitive parts without worrying about short circuits.

The included cleaning wipes make it easier to prepare your surfaces for the best adhesion and performance. On the downside, while the paste is optimized to reduce the ‘pump-out’ effect (where thermal paste can get pushed out over time), some users may find the viscosity a bit thick, which can make precise application a little tricky if you're new to installing thermal paste. But the package size (6 grams) and included wipes are generous for multiple uses.

For those seeking a reliable, high-quality thermal paste that combines ease of application with strong, lasting cooling performance, especially in demanding setups, Duronaut represents a solid and dependable option.

Rating
9.1
Thermal Conductivity
Viscosity
Longevity and Durability

Most important from
100 reviews

Thermal Conductivity
Delivers exceptional heat transfer that significantly lowers CPU and GPU temperatures even under heavy loads.
Viscosity
The thick consistency can make precise application a bit tricky, especially for those new to installing thermal paste.
Longevity and Durability
Offers outstanding durability without hardening or losing effectiveness over time, reducing the need for frequent reapplication.
Ease of Application
Includes generous cleaning wipes that help prepare surfaces for optimal adhesion and a clean, effective application.
#3

Arctic Silver 5 High Density Polysynthetic Silver Thermal Compound -12g (AS5-12G-R)

Rating
7.9
Thermal Conductivity
Viscosity
Longevity and Durability

Most important from
684 reviews

Thermal Conductivity
Arctic Silver 5 offers great thermal conductivity, making it a solid choice for high-performance systems.
Viscosity
Although the paste has a thicker consistency that can make application harder, it delivers reliable, long-lasting performance once applied correctly.
Longevity and Durability
Despite trying other 'better' thermal pastes, Arctic Silver 5 remains a reliable choice that consistently performs well.
Ease of Application
It's particularly favored by those looking for a more traditional paste for high-performance systems, but be prepared for a bit of a learning curve during application.

The Arctic Silver 5 High Density Polysynthetic Silver Thermal Compound is a popular option for enhancing CPU cooling performance. It excels in thermal conductivity due to its composition of 99.9% pure silver particles, which ensures efficient heat transfer from the CPU to the heatsink or water-cooling solutions. This high thermal conductivity is beneficial for both gamers and high-performance PC users who need reliable cooling under heavy workloads.

The controlled triple-phase viscosity also ensures that the paste spreads evenly and maintains consistent performance over time. However, its high density can make application a bit tricky, requiring careful handling to avoid air bubbles that could reduce its effectiveness. It's not electrically conductive, which is a safety plus as it minimizes the risk of short circuits if some paste accidentally spills onto the motherboard.

Durability is another strong point, as it doesn't dry out quickly and maintains performance for extended periods, reducing the frequency of reapplication. On the downside, the paste can be somewhat difficult to remove during cleaning, and there are more user-friendly options available for beginners. If ease of application is a primary concern, users might find softer, more pliable pastes easier to work with. However, for those experienced with applying thermal paste or those prioritizing top-notch cooling performance, Arctic Silver 5 is a solid choice.

Rating
7.9
Thermal Conductivity
Viscosity
Longevity and Durability

Most important from
684 reviews

Thermal Conductivity
Arctic Silver 5 offers great thermal conductivity, making it a solid choice for high-performance systems.
Viscosity
Although the paste has a thicker consistency that can make application harder, it delivers reliable, long-lasting performance once applied correctly.
Longevity and Durability
Despite trying other 'better' thermal pastes, Arctic Silver 5 remains a reliable choice that consistently performs well.
Ease of Application
It's particularly favored by those looking for a more traditional paste for high-performance systems, but be prepared for a bit of a learning curve during application.

Buying Guide for the Best Thermal Paste For Cpu

Choosing the right thermal paste for your CPU is crucial for maintaining optimal temperatures and ensuring the longevity and performance of your computer. Thermal paste, also known as thermal compound or thermal grease, is applied between the CPU and the cooler to enhance heat transfer. The right thermal paste can significantly impact your CPU's cooling efficiency. Here are some key specifications to consider when selecting thermal paste for your CPU.
Thermal ConductivityThermal conductivity is a measure of how well the thermal paste can transfer heat from the CPU to the cooler. It is usually measured in watts per meter-kelvin (W/mK). Higher thermal conductivity values indicate better heat transfer capabilities. For general use, a thermal paste with a conductivity of around 5-8 W/mK is sufficient. For high-performance or overclocked systems, you might want to look for pastes with conductivity values above 10 W/mK. Your choice should depend on how much heat your CPU generates and whether you plan to overclock it.
ViscosityViscosity refers to the thickness or consistency of the thermal paste. It affects how easy the paste is to apply and how well it spreads over the CPU surface. Low-viscosity pastes are easier to apply and spread more evenly, making them suitable for beginners. High-viscosity pastes may require more effort to apply but can provide better performance in high-pressure mounting systems. If you are new to applying thermal paste, a medium to low viscosity paste is recommended for ease of use.
Electrical ConductivityElectrical conductivity is an important safety consideration. Some thermal pastes are electrically conductive, which means they can cause short circuits if they come into contact with other components. Non-conductive pastes are safer to use, especially for beginners or those who are not confident in their application skills. If you are concerned about safety or are new to applying thermal paste, opt for a non-conductive paste to avoid any potential damage to your components.
Longevity and DurabilityLongevity and durability refer to how long the thermal paste maintains its effectiveness after application. Some pastes can dry out or degrade over time, reducing their thermal performance. High-quality thermal pastes can last several years without needing reapplication. If you want a low-maintenance option, look for pastes that are known for their long-lasting performance. This is particularly important if you do not plan to frequently reapply the paste or if your system will be running continuously for long periods.
Ease of ApplicationEase of application is a practical consideration, especially for those who are new to building or maintaining computers. Some thermal pastes come with applicators or are pre-applied on coolers, making the process simpler. Others may require more precision and care during application. If you are not experienced with applying thermal paste, look for products that are marketed as easy to apply or come with applicators to ensure a smooth and even application.

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