Thermalright Assassin X 120R Digital ARGB Black CPU Cooler vs Thermalright Peerless Assassin 120 SE Black CPU Cooler
Updated August 2026 — The Thermalright Assassin X 120R offers superior cooling performance and aesthetic appeal at a lower price, making it the better choice for budget-conscious users. However, the Peerless Assassin provides quieter operation with dual fans.
The Thermalright Assassin X 120R offers superior cooling performance and aesthetic appeal at a lower price, making it the better choice for budget-conscious users. However, the Peerless Assassin provides quieter operation with dual fans.
Why Thermalright Assassin X 120R Digital ARGB Black CPU Cooler is better
Cooling Performance
Assassin X has higher CFM and wind pressure.
Price
Assassin X is C$13.89 cheaper.
Aesthetic Appeal
Assassin X features digital ARGB lighting.
Why Thermalright Peerless Assassin 120 SE Black CPU Cooler is better
Noise Levels
Peerless Assassin operates quieter at 25.6 dB(A).
Dual Fans
Peerless Assassin has a dual fan setup.
Installation Support
Peerless Assassin includes metal fasteners for easier installation.
Overall score
Specifications
| Spec | Thermalright Assassin X 120R Digital ARGB Black CPU Cooler | Thermalright Peerless Assassin 120 SE Black CPU Cooler |
|---|---|---|
| Cooling Type | Single Fan | Dual Fans |
| Max Noise | 29.8 dB(A) | 25.6 dB(A) |
| Compatibility | Intel LGA 1851/1700/1150/1151/1155/1156/1200, AMD AM4/AM5 | Intel LGA 1150/1151/1155/1156/1200/1700/1851, AMD AM4/AM5 |
| Material | Aluminum | Aluminum |
| Installation Ease | Accessory included | Metal fasteners included |
Dimension comparison
Introduction to CPU Coolers
When selecting a CPU cooler, performance and compatibility are essential factors. The Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Thermalright Peerless Assassin 120 SE Black CPU Cooler are two noteworthy options in the market, each offering unique features and specifications. With price points of C$32.90 and C$46.79 respectively, these coolers cater to different budgets and preferences in terms of design and functionality.
Design and Build Quality
Both coolers feature a robust design, but their aesthetics and build materials differ. The Assassin X 120R boasts a sleek digital ARGB design that enhances the overall appearance of a build, while the Peerless Assassin 120 SE has a more utilitarian look with a blackened nano coating. The Assassin X measures 120x71x151mm, making it compact yet effective, while the Peerless Assassin is slightly larger at 125x135x155mm, providing a dual tower setup that can improve cooling performance. This difference in design may influence a user's choice based on their case compatibility and visual preferences.
Cooling Performance
Cooling efficiency is crucial for maintaining optimal CPU temperatures. The Assassin X 120R features a single 120mm fan that operates at a speed of 2000 RPM, generating a wind pressure of 2.63 mm H2O and an air volume of 70.84 CFM. In contrast, the Peerless Assassin 120 SE utilises two PWM fans, each running at 1550 RPM, which collectively produce an air volume of 66.17 CFM. Although the Peerless has a dual fan configuration, the Assassin X still outperforms it in terms of CFM and wind pressure. This performance differential may sway enthusiasts looking for the best cooling capability.
Noise Levels
When it comes to noise production, the Assassin X operates at a maximum noise level of 29.8 dB(A), while the Peerless Assassin is quieter at a maximum of 25.6 dB(A). This lower noise level in the Peerless may appeal to users who value a silent operation, especially in a home or office environment. However, the performance trade-off must be considered, as the Assassin X offers higher airflow and cooling performance, albeit at a slightly louder decibel level.
Compatibility
Both coolers support a range of Intel and AMD sockets, making them versatile options for various builds. The Assassin X is compatible with Intel LGA 1851/1700/1150/1151/1155/1156/1200 and AMD AM4/AM5 sockets. The Peerless Assassin similarly supports Intel LGA 1150/1151/1155/1156/1200/1700/1851 and AMD AM4/AM5. This wide compatibility ensures that both coolers can fit into most modern systems, but the specific installation requirements may vary slightly between the two. The Assassin X requires the use of the motherboard's original backplate for AMD installation, which may be a consideration for some builders.
Installation Process
The ease of installation can greatly influence a user's experience with a CPU cooler. The Assassin X comes with an installation accessory that facilitates a straightforward setup, aided by a video or manual. Meanwhile, the Peerless Assassin provides metal fasteners specifically designed for both Intel and AMD platforms, improving the overall installation experience. Both coolers aim to simplify the process, but the Peerless may offer a slight edge in terms of additional support for different CPU sockets.
Aesthetic Appeal
Aesthetic considerations can be just as important as performance for many PC builders. The Assassin X features a digital ARGB design that not only enhances the cooler's appearance but also allows for light synchronisation with the motherboard, creating a visually striking effect. The Peerless Assassin, while less flashy, has a minimalist design that some users may prefer. Ultimately, aesthetic preference will depend on individual tastes and how each cooler fits into the overall theme of a build.
Price Consideration
Price is a significant factor when selecting a CPU cooler. The Assassin X is priced at C$32.90, making it a more budget-friendly option compared to the Peerless Assassin, which retails at C$46.79. This C$13.89 difference can be a deciding factor for users who are looking to build a system without overspending. While the Peerless offers dual fans and potentially better heat dissipation, the Assassin X delivers superior airflow at a lower cost, making it a compelling choice for those on a budget.
Which should you buy?
Ultimately, the choice between the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Thermalright Peerless Assassin 120 SE Black CPU Cooler hinges on your specific needs and preferences. If you prioritise higher cooling performance and aesthetic appeal at a more affordable price, the Assassin X is the clear winner. On the other hand, if you favour a quieter operation and a dual fan setup, the Peerless Assassin may be worth the extra investment. Both products are excellent choices, but careful consideration of their respective features and prices will help you make the best decision for your build.
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