Thermal Grizzly Kryonaut vs TR-Assassin X 120R SE V2 CPU Air Cooler
Updated August 2026 — The Thermal Grizzly Kryonaut excels in thermal conductivity, while the TR-Assassin X 120R SE V2 offers effective airflow and aesthetics. Choose based on your cooling needs.
The Thermal Grizzly Kryonaut excels in thermal conductivity, while the TR-Assassin X 120R SE V2 offers effective airflow and aesthetics. Choose based on your cooling needs.
Why Thermal Grizzly Kryonaut is better
thermal performance
12.5 W/mK thermal conductivity
application ease
includes a spatula for easy application
risk-free
non-conductive and non-capacitive
Why TR-Assassin X 120R SE V2 CPU Air Cooler is better
airflow performance
66.17 CFM airflow
RGB aesthetics
features static RGB lighting
compact design
fits in most ATX cases without obstructing RAM
Overall score
Specifications
| Spec | Thermal Grizzly Kryonaut | TR-Assassin X 120R SE V2 CPU Air Cooler |
|---|---|---|
| Brand | Thermal Grizzly | TR |
| Type | Thermal Paste | Air Cooler |
| Compatibility | CPUs, GPUs | Intel LGA1150/1700, AMD AM4/AM5 |
| Installation | Easy with spatula | Requires original backplate |
| Material | Non-conductive | Aluminum and Copper |
Dimension comparison
Overview of Cooling Solutions
When it comes to maintaining optimal temperatures in high-performance computing setups, the choice between the Thermal Grizzly Kryonaut and the TR-Assassin X 120R SE V2 CPU Air Cooler stands out. The Thermal Grizzly Kryonaut is a thermal paste priced at £6.95, offering exceptional thermal conductivity of 12.5 W/mK. In contrast, the TR-Assassin X 120R SE V2 is an air cooler available at £14.49, featuring a robust heatsink design and an efficient fan. Both products cater to the cooling needs of CPUs, yet they operate in fundamentally different ways—one as a thermal interface material and the other as an active cooling solution.
Performance Metrics
Performance is a critical factor in choosing a cooling solution. The Thermal Grizzly Kryonaut boasts a thermal conductivity rating of 12.5 W/mK, which is considered top-tier for thermal pastes. This high rating ensures that heat is efficiently transferred from the CPU to the cooler, making it ideal for demanding applications. On the other hand, the TR-Assassin X 120R SE V2 focuses on airflow performance, with its fan capable of reaching a maximum airflow of 66.17 CFM at a noise level of 25.6 dB(A). This combination of airflow and low noise makes it suitable for users seeking a balance between cooling efficiency and a quieter environment.
Installation Process
Installation ease varies significantly between the two products. The Thermal Grizzly Kryonaut comes with a specially designed spatula, facilitating an even application of the thermal paste. This ensures optimal coverage and maximum cooling performance, crucial for achieving the best thermal interface between the CPU and cooler. In contrast, the TR-Assassin X 120R SE V2 utilises an SS2 install system and a metal pressure plate, which aims to enhance contact with the CPU. However, it requires users to employ the original motherboard's backplate for AM4 and AM5 installations, potentially complicating the setup for some users.
Compatibility
Both products offer broad compatibility, albeit in different contexts. The Thermal Grizzly Kryonaut is suitable for a variety of components, including CPUs and GPUs, making it a versatile choice for various cooling requirements. This wide compatibility is particularly beneficial for users with mixed hardware setups. Meanwhile, the TR-Assassin X 120R SE V2 supports a range of motherboard sockets, including Intel's LGA1150 to LGA1700 and AMD's AM4 and AM5. Its compact height of 148 mm ensures that it fits in most ATX cases without obstructing RAM modules, which is a significant advantage for users with limited space.
Material and Build Quality
The materials used in constructing these cooling solutions contribute significantly to their performance. The Thermal Grizzly Kryonaut is crafted from a unique blend that promises not to be electrically conductive or capacitive, reducing any risk of short circuits during application. This risk-free feature is especially appealing for users who may be concerned about damaging their hardware. Conversely, the TR-Assassin X 120R SE V2 features a heatsink made of aluminium and copper, combining lightness with effective thermal conductivity. This dual-material construction enhances its overall cooling performance while maintaining a manageable weight for easy installation.
Target Audience
The intended audience for each product differs based on their specific cooling needs. The Thermal Grizzly Kryonaut is ideal for overclockers and enthusiasts who demand maximum thermal efficiency from their thermal paste. Its high-performance characteristics make it particularly well-suited for advanced systems that require optimal heat dissipation. In contrast, the TR-Assassin X 120R SE V2 targets users looking for a reliable air cooling solution that combines effective cooling with RGB aesthetics. Its design appeals to gamers and PC builders who want both performance and visual appeal in their setups.
Price Comparison
Price is a crucial consideration when evaluating cooling solutions. The Thermal Grizzly Kryonaut is priced at £6.95, making it an affordable choice for those seeking high-quality thermal paste. In comparison, the TR-Assassin X 120R SE V2 is priced at £14.49, reflecting its more complex design and additional features. While the air cooler is more expensive, it offers a complete cooling solution rather than just a thermal interface material, which may justify the higher price for many users.
Which should you buy?
Deciding between the Thermal Grizzly Kryonaut and the TR-Assassin X 120R SE V2 ultimately depends on your specific needs. If you require an exceptional thermal paste that ensures optimal heat transfer, the Thermal Grizzly Kryonaut is the superior choice at £6.95. However, for users seeking a comprehensive cooling solution with efficient airflow and lower noise levels, the TR-Assassin X 120R SE V2 at £14.49 may be worth the investment. Both products excel in their respective categories, making them valuable additions to any PC cooling setup.
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