10 Best Thermal Pastes 2025 in the United States

The Cooler Master MasterGel Pro V2 is a thermal paste designed to efficiently transfer heat away from your CPU or GPU, making it a solid choice for gamers and high-performance PC builders. Its thermal conductivity rating of 9 W/mK is quite high, meaning it can help keep your processors cooler compared to many standard pastes. One of its key advantages is that it has zero electrical conductivity, which means it won’t risk causing shorts or damaging sensitive motherboard or graphics card components — a common concern with cheaper thermal compounds.

Application is straightforward thanks to the included applicator, and the paste spreads smoothly without creating a mess, which is great if you want a quick and clean setup. The product is portable and comes in a small 1.5 ml tube, enough for a few applications. This paste is an upgraded version of an earlier model, promising improved heat transfer and reliable performance over time. It works well with both air and liquid cooling systems, adding to its versatility.

The small quantity might not suit users who frequently reapply thermal paste. Still, backed by Cooler Master's reputation, it represents a trustworthy option for those wanting better cooling efficiency without the risk of electrical damage.

The Cooler Master CryoFuze Violet thermal paste is designed to help cool CPUs and GPUs by efficiently transferring heat away from the chip to the cooler. Its standout feature is a high thermal conductivity rating of 12.6 W/mK, which means it’s very effective at conducting heat and suitable even for demanding or high-performance builds. The paste uses nanoparticles that improve heat transfer, and its violet tint makes it easy to see during application. It’s also electrically non-conductive and non-moisture absorbent, reducing risks of short circuits or damage due to moisture.

Application is straightforward thanks to a balanced thickness that spreads easily and cleans up without much trouble. The paste is compatible with laptops and desktops alike, making it a versatile choice. This thermal paste represents a solid option for anyone looking to improve cooling performance with an easy-to-use, safe, and efficient compound.

The Noctua NT-H2 thermal paste stands out as a premium-grade option designed for optimal heat transfer from CPUs and GPUs to heatsinks. With impressive thermal conductivity, it can significantly lower temperatures compared to standard pastes, making it particularly beneficial for gamers and PC builders looking to enhance their system performance. Users appreciate its ease of application, as it requires no spreading before installing the heatsink, streamlining the installation process. Additionally, the inclusion of 10 cleaning wipes is a nice touch, ensuring easy cleanup after the application.

One of the notable strengths of the NT-H2 is its longevity. With a recommended usage time of up to 5 years on the CPU and a storage time of up to 3 years, it offers excellent durability that can save users from the hassle of frequent reapplications. This characteristic makes it ideal for long-term setups, whether for gaming, content creation, or regular computing tasks.

The NT-H2 is highly effective, although its 10g packaging might not be sufficient for users with multiple high-end components, especially if they’re working on large CPUs like the TR4 socket. Depending on the size and type of CPU, the paste could provide around 9 to 60 applications, which might feel limiting for extensive builds or repairs.