Thermalright Assassin X120 SE ARGB CPU Air Cooler vs Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler
Updated August 2026 — The Thermalright Peerless Assassin 120 SE ARGB offers superior cooling performance and features, making it the better choice for high-performance needs. However, the Assassin X120 SE is a more budget-friendly option.
The Thermalright Peerless Assassin 120 SE ARGB offers superior cooling performance and features, making it the better choice for high-performance needs. However, the Assassin X120 SE is a more budget-friendly option.
Why Thermalright Assassin X120 SE ARGB CPU Air Cooler is better
lower price
Assassin X120 SE is £16.29
lighter weight
Assassin X120 SE weighs 0.63kg
smaller size
Assassin X120 SE dimensions are 120mm x 71mm x 148mm
Why Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler is better
better cooling
Peerless Assassin has dual fans
larger heat pipes
Peerless Assassin has 6 heat pipes
enhanced design
Peerless Assassin features a double tower design
Overall score
Specifications
| Spec | Thermalright Assassin X120 SE ARGB CPU Air Cooler | Thermalright Peerless Assassin 120 SE ARGB CPU Air Cooler |
|---|---|---|
| Airflow | 66.17 CFM | 66.17 CFM |
| Noise Level | ≤25.6 dB(A) | ≤25.6 dB(A) |
| Socket Support | Intel LGA 1150/1151/1155/1156/1200/1700/1851, AMD AM4/AM5 | Intel 115X/1200/1700/1851, AMD AM4/AM5 |
| Heat Pipes | 4 | 6 |
| Material | Aluminum | Aluminum |
Dimension comparison
Introduction to Thermalright Coolers
When it comes to efficient CPU cooling solutions, Thermalright offers a robust selection. This article compares two of their popular models: the Thermalright Assassin X120 SE ARGB and the Thermalright Peerless Assassin 120 SE ARGB. With price points of £16.29 and £28.79, respectively, these coolers target different segments of the market while providing essential cooling features.
Design and Build Quality
The Thermalright Assassin X120 SE ARGB has dimensions of 120mm x 71mm x 148mm and weighs 0.63kg, while the Peerless Assassin 120 SE ARGB is slightly larger at 125mm x 135mm x 155mm and weighs 0.97kg. The latter’s larger build allows for a double tower design, enhancing cooling capacity. Both models feature an aluminium heat sink, but the Peerless Assassin employs six heat pipes compared to the four in the Assassin X120 SE. This design difference aims to deliver superior thermal performance, particularly under heavy loads.
Cooling Performance
Cooling performance is a critical factor for any CPU cooler. The Assassin X120 SE features a single PWM fan with a maximum speed of 1550 RPM, delivering an airflow of 66.17 CFM while maintaining a noise level of ≤25.6 dB(A). In contrast, the Peerless Assassin uses two PWM fans that operate at a slightly lower maximum speed of 1500 RPM but also achieve an airflow of 66.17 CFM. The dual fan setup in the Peerless model typically offers improved cooling efficiency, especially in high-performance scenarios.
Installation and Compatibility
Both coolers are designed for easy installation and compatibility with a wide range of CPU sockets. The Assassin X120 SE supports Intel sockets LGA 1150, 1151, 1155, 1156, 1200, 1700, and 1851, along with AMD AM4 and AM5. The Peerless Assassin offers similar compatibility, supporting Intel 115X, 1200, 1700, and 1851 sockets, as well as AMD AM4 and AM5. Installation ease is enhanced by the inclusion of mounting plates and fasteners for different platforms in both models, making them user-friendly options for builders.
Aesthetic Appeal
In terms of aesthetics, both coolers feature ARGB lighting effects, which add a vibrant touch to any build. The Assassin X120 SE utilises a single fan with colourful lighting, while the Peerless Assassin boasts dual fans that enhance visual impact. This dual setup not only appeals to gamers and PC enthusiasts looking for a striking design but also offers an opportunity for better light diffusion throughout the case. Both models are designed to provide a visually appealing cooling solution without compromising performance.
Brand Reputation
Thermalright has established itself as a reputable brand in the cooling industry, with over 20 years of experience. Their focus on research and development has enabled them to create high-quality cooling solutions that are well-regarded among PC builders. Both the Assassin X120 SE and the Peerless Assassin are products of this expertise, with their designs reflecting a commitment to quality and performance that is expected from a leading brand.
Price Consideration
The price difference between the two models is significant, with the Assassin X120 SE priced at £16.29 and the Peerless Assassin at £28.79. This £12.50 gap may be justified by the additional features and performance capabilities of the Peerless model, including its dual-fan configuration and larger cooling surface area. For budget-conscious consumers, the Assassin X120 SE presents an attractive option, while those seeking enhanced cooling performance may find the investment in the Peerless Assassin worthwhile.
Which should you buy?
Choosing between the Thermalright Assassin X120 SE ARGB and the Thermalright Peerless Assassin 120 SE ARGB ultimately depends on your specific needs and budget. If you are looking for an affordable, effective cooling solution with solid performance, the Assassin X120 SE is an excellent choice. However, if you require superior cooling capabilities for high-performance tasks and don’t mind spending more, the Peerless Assassin is the better option with its dual-fan design and enhanced thermal efficiency. Consider your cooling requirements, case size, and budget to make the best decision for your setup.
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