Thermalright Assassin X120 Refined SE CPU Air vs Thermalright Peerless Assassin 120 SE V2 CPU
Updated July 2026 — Thermalright Assassin X120 Refined SE CPU Air wins on weight, Thermalright Peerless Assassin 120 SE V2 CPU wins on width and height.
The Thermalright Peerless Assassin 120 SE V2 offers superior cooling performance, while the Assassin X120 Refined SE is a budget-friendly option with quieter operation.
Why Thermalright Assassin X120 Refined SE CPU Air is better
Price
Assassin X120 is significantly cheaper.
Noise Level
Assassin X120 operates quieter.
Size
Assassin X120 is more compact.
Why Thermalright Peerless Assassin 120 SE V2 CPU is better
Cooling Performance
Peerless Assassin has higher airflow.
Heat Pipes
Peerless Assassin has more heat pipes.
Fan Speed
Peerless Assassin has a higher max RPM.
Overall score
Specifications
| Spec | Thermalright Assassin X120 Refined SE CPU Air | Thermalright Peerless Assassin 120 SE V2 CPU |
|---|---|---|
| Max RPM | 1550 | 1850 |
| Airflow | 66.17 CFM | 88.89 CFM |
| Noise Level | ≤25.6 dB(A) | 29.5 dB(A) |
| Socket Support | Intel 1150-1851, AMD AM4/AM5 | Intel 1700/1851, AMD AM4/AM5 |
| Material | Aluminum | Copper |
Dimension comparison
Overview of Thermalright Assassin X120 Refined SE
The Thermalright Assassin X120 Refined SE CPU Air Cooler is designed to offer efficient cooling for various CPU types. Priced at $17.90, it is about 54% cheaper than its competitor, making it an attractive option for budget-conscious users. This cooler features 4 heat pipes, a TL-C12C PWM fan, and an aluminum heatsink cover, which collectively contribute to its cooling performance. With dimensions of 125mm x 71mm x 148mm, it fits comfortably in medium-sized computer cases. This cooler is compatible with both AMD and Intel platforms, enhancing its versatility for different builds.
Overview of Thermalright Peerless Assassin 120 SE V2
The Thermalright Peerless Assassin 120 SE V2 CPU Cooler offers superior cooling capabilities, priced at $38.99. It features a dual tower design, which includes 6 heat pipes and dual 120mm PWM fans that can reach speeds of up to 1850 RPM. This cooler provides enhanced heat dissipation, making it ideal for gaming and multitasking. With dimensions of 125mm x 110mm x 155mm, it is slightly taller than its competitor, but the dual tower structure allows for more stable thermal performance compared to basic stock coolers. The Peerless Assassin is compatible with both AMD and Intel platforms, making it a practical choice for modern desktop systems.
Cooling Performance Comparison
The Thermalright Peerless Assassin 120 SE V2 is geared towards users needing robust cooling performance, as evidenced by its dual tower and dual fan design. This configuration allows for a maximum airflow of 88.89 CFM, which is significantly higher than the Assassin X120 Refined SE’s 66.17 CFM. The higher fan speed of 1850 RPM in the Peerless Assassin also contributes to its superior airflow and cooling efficiency, making it a better choice for high-load scenarios. In contrast, the Assassin X120 is more geared towards users who require reliable yet quieter cooling, with a noise level of ≤25.6 dB(A), compared to the Peerless Assassin's 29.5 dB(A).
Installation and Compatibility
Both coolers offer broad compatibility with various CPU sockets. The Assassin X120 Refined SE supports Intel sockets from 1150 to 1851 and AMD AM4/AM5 platforms, making it versatile for different setups. The Peerless Assassin 120 SE V2 similarly supports AMD AM4/AM5 and Intel LGA1851/1700 sockets. However, the installation process may vary slightly; the Assassin X120 comes with metal fasteners for easy installation, while the peerless model boasts a more complex dual tower structure that might require more careful consideration during setup. Users should note the dimensions of each cooler to ensure compatibility with their cases.
Design and Aesthetics
In terms of design, the Thermalright Peerless Assassin 120 SE V2 features a dual tower structure that not only improves cooling efficiency but also gives it a more contemporary and robust look. The dual 120mm fans add an aesthetic appeal and allow for customizable RGB lighting, if applicable. On the other hand, the Assassin X120 Refined SE, with its aluminum heatsink cover and simpler design, appeals to users looking for a more understated and classic look. Both designs are functional, but the Peerless Assassin stands out for users who prefer a more modern aesthetic in their builds.
Noise Levels
The Thermalright Assassin X120 Refined SE operates at a maximum noise level of ≤25.6 dB(A), making it an excellent choice for users who prioritize a quiet computing environment. In contrast, the Peerless Assassin 120 SE V2, while still relatively quiet, has a maximum noise level of 29.5 dB(A), which is about 15% louder. Users who work in noise-sensitive environments or who prefer a quiet PC experience may find the Assassin X120 more appealing, while those who require higher cooling performance may be willing to accept the additional noise from the Peerless model.
Price and Value
The Thermalright Assassin X120 Refined SE is priced at $17.90, which makes it a budget-friendly option for those looking to upgrade their CPU cooling without breaking the bank. In comparison, the Peerless Assassin 120 SE V2 is priced at $38.99, making it about 117% more expensive than the Assassin X120. While the Peerless model offers enhanced cooling capabilities, the significant price difference may deter budget-conscious buyers. For users with lower cooling demands, the Assassin X120 provides excellent value for its price point.
Which should you buy?
Ultimately, the choice between the Thermalright Assassin X120 Refined SE and the Thermalright Peerless Assassin 120 SE V2 boils down to individual needs and priorities. If you are seeking a cost-effective cooling solution with reliable performance and quieter operation, the Assassin X120 is the better option. However, if your primary goal is superior cooling performance for demanding tasks and you are willing to invest more, the Peerless Assassin 120 SE V2 would serve you better. Consider your cooling requirements, budget, and aesthetic preferences to make the best choice for your setup.

