Thermalright Peerless Assassin 120 SE V2 CPU Cooler vs Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi
Updated August 2026 — The Thermalright Peerless Assassin 120 SE V2 excels in cooling performance and build quality, while the Assassin X offers modern aesthetics and a lower price. Choose based on your priorities.
The Thermalright Peerless Assassin 120 SE V2 excels in cooling performance and build quality, while the Assassin X offers modern aesthetics and a lower price. Choose based on your priorities.
Why Thermalright Peerless Assassin 120 SE V2 CPU Cooler is better
Cooling Performance
Higher TDP of 265 watts
Build Quality
Solid construction with aluminum and copper
Noise Levels
Quieter operation at ≤29.5 dB(A)
Why Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi is better
Price
Significantly lower price at C$28.39
Aesthetic Appeal
Digital screen for monitoring
Fan Speed
Higher RPM fan at 2000 RPM
Overall score
Specifications
| Spec | Thermalright Peerless Assassin 120 SE V2 CPU Cooler | Thermalright Assassin X 120R Digital ARGB White CPU Cooler Air with 4X6mm HeatPi |
|---|---|---|
| TDP | 265W | Not specified |
| Air Flow | 88.19 CFM | Not specified |
| Noise Level | ≤29.5 dB(A) | Not specified |
| Fan RPM | 1850 RPM | 2000 RPM |
| Compatibility | Intel/AMD | Intel/AMD |
Dimension comparison
Price Comparison
When comparing the prices of the Thermalright Peerless Assassin 120 SE V2 and the Thermalright Assassin X 120R Digital ARGB, the difference is quite significant. The Peerless Assassin is priced at C$54.90, while the Assassin X comes in at a much lower C$28.39. This means that the Peerless Assassin costs nearly double the price of the Assassin X. For budget-conscious consumers, this price disparity may be a deciding factor, especially if they are looking for a reliable cooler without breaking the bank.
Design and Build Quality
In terms of design and build quality, the Thermalright Peerless Assassin boasts a solid construction with dimensions of 125mm x 135mm x 155mm and a weight of 610 grams. It features an aluminum fin structure with a pure copper base, ensuring effective heat dissipation. Conversely, the Assassin X is designed with a single tower configuration and incorporates an LCD digital screen for monitoring CPU and GPU temperatures. While both coolers exhibit robust build quality, the digitised features of the Assassin X provide a modern touch that may appeal to tech enthusiasts.
Cooling Performance
Cooling performance is a critical factor for any CPU cooler, and here the Thermalright Peerless Assassin showcases its strengths with a TDP of up to 265 watts. It employs six 6mm heat pipes and dual PWM fans with a maximum air flow of 88.19 CFM. On the other hand, the Assassin X, equipped with four 6mm heat pipes and a single 2000 RPM PWM fan, focuses on efficient cooling through its AGHP technology. While the Peerless Assassin may have a higher theoretical TDP, the Assassin X's advanced technology is designed to mitigate the effects of vertical and horizontal orientations, enhancing its cooling efficiency.
Noise Levels
Noise levels can significantly affect user experience, especially in quieter environments. The Thermalright Peerless Assassin operates at a noise level of ≤29.5 dB(A), which is relatively quiet for a cooler in its performance class. In contrast, while specific noise levels for the Assassin X are not stated, it features silicone corner pads designed to reduce noise caused by fan rotation. The assumption is that the Assassin X aims for a quieter operation as well, but without exact figures, the Peerless Assassin currently holds the advantage in this regard.
Fan Technology
Fan technology plays a crucial role in the efficiency of CPU coolers. The Thermalright Peerless Assassin utilizes dual TL-C12C-X28 V2 fans that can reach speeds of up to 1850 RPM, delivering a substantial air flow of 88.19 CFM. This dual-fan setup is particularly advantageous for cooling under load. In contrast, the Assassin X features a single 2000 RPM PWM fan, designed to adjust its speed automatically based on temperature. While the higher RPM of the Assassin X could potentially yield better cooling under specific conditions, the dual fans of the Peerless Assassin provide consistent performance across a broader range of scenarios.
Compatibility
Compatibility is essential for ensuring that a CPU cooler can be effectively installed on various systems. The Thermalright Peerless Assassin is compatible with a wide range of Intel sockets including LGA 1851/1700/1200/115X and AMD sockets AM4/AM5. Meanwhile, the Assassin X also supports dual platforms, indicating a similar level of compatibility. The extensive support for both products means that users should have no trouble finding a suitable fit for their configurations.
Aesthetic Appeal
Aesthetic considerations can influence buyer decisions, and here the Thermalright Assassin X stands out with its digital screen top cover. This feature allows users to monitor CPU and GPU temperatures visually, adding a modern flair to its design. The Peerless Assassin, while effective, lacks these additional visual features. For users who appreciate an aesthetically pleasing build, the Assassin X may be the more attractive option, especially for those looking to showcase their builds through tempered glass cases.
Which should you buy?
Ultimately, the decision between the Thermalright Peerless Assassin 120 SE V2 and the Thermalright Assassin X 120R Digital ARGB hinges on individual needs and preferences. If you're seeking high cooling performance, a robust build, and don't mind spending more, the Peerless Assassin at C$54.90 is an excellent choice. However, if you're on a tighter budget or value the modern aesthetics and features like real-time temperature monitoring, the Assassin X at C$28.39 offers great value. Each cooler has its advantages, making it essential to weigh what aspects matter most to you before making a purchase.
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