Review: Thermalright Peerless Assassin 120 SE

Thermalright Peerless Assassin 120 SE manufacture's image
Thermalright Peerless Assassin 120 SE
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CPU Cooler Details:
Metric Value
Brand Thermalright
Cooler Name Peerless Assassin 120 SE
Fan 1 Name TL-C12 120mm Fan
Fan 2 Name TL-C12 120mm Fan
Stated dBa 25.6
Number of Heat Pipes 6
Full Size (WxHxD): 125x154x136 mm
Radiator 1 (WxHxD) 125x107x40 mm
Radiator 2 (WxHxD) 125x107x40 mm
Air Cooler Rating: Install 8 (Easy)
Manufacture's Link Peerless Assassin 120 SE Manufacture's Link

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Fan Details for CPU Cooler:
Metric Fan 1 Fan 2
Fan Name TL-C12 120mm Fan TL-C12 120mm Fan
Fan Location Front Mid
Fan Flow Type Push Mid
CPU Only Fan No No
Max RPM 1500 1500
Fan Size (mm) 120 120
Fan Width (mm) 25 25
Manufacture Rated dBa 25.6 25.6
Manufactured Rated Airflow (cmf) 66.2 66.2
Manufactured Rated Air Pressure (h2o) 1.5 1.5
Number Of Pins 4 4
PWM Fan Yes Yes
Bearing Type Fluid Dynamic Fluid Dynamic
Watts (W) 2.40 2.40
Current (A) 0.20 0.20
Max Volts 12.00 12.00

Design and Aesthetics:

The Peerless Assassin 120 SE sports a sleek design, with a large aluminum heatsink, all-black fans, and a black top radiator. The two 120mm fans ensure optimal airflow and efficient heat dissipation. This modern and sophisticated appearance complements various build themes, making it an attractive choice for many PC enthusiasts that are on a budget. The similar Peerless Assassin 120 offers a gray look with a more polished top.

Install Notes:

This cooler installation is very similar to Noctua's typical installation, which is one of the easier installation setups. However, it also faces similar issues regarding uninstalling this cooler, where the cooler is unable to slide/twist off the cooler to break the thermal paste seal. This might be necessary if the thermal paste has a strong hold between the cooler and the CPU.

Cooling Performance:

Impressive performance is a standout feature of the Peerless Assassin 120 SE, thanks to its six heat pipes that efficiently transfer heat away from the CPU and into the expansive fin array of the heatsink. It is suitable for a wide range of processors, including high-end models with high TDPs. The cooler is capable of handling demanding workloads and significant overclocking, making it a an attractive cooling solution option.

Noise Performance:

One of the standout features of the Peerless Assassin 120 SE is its relative quiet operation. The two included 120mm TL-C12 PWM fans are designed for optimal airflow and low noise levels. Although, this cooler can be louder than some other coolers of similar size, the relative cooling makes this cooler a contender for your setup.


A notable feature of the Peerless Assassin 120 SE is its comparatively quiet performance. The cooler comes equipped with two 120mm TL-C12 PWM fans, engineered for optimal airflow and reduced noise levels. While it may be slightly louder than other coolers of a similar size, its impressive cooling capabilities make the Peerless Assassin 120 SE a strong contender for your PC setup.

Community Review:

Below is a summary of reviews posted online regarding the Peerless Assassin 120 SE. Note that this is a synthesis of reviews and does not reflect or consider other information on this site.

The product's performance elicits a range of opinions. Some users have reported effective cooling capabilities, finding it adept at maintaining low temperatures even during demanding tasks. However, there are those who have encountered issues with temperature control, suggesting that its performance may be context-dependent.

When it comes to noise levels, a majority of users appreciate the product's ability to operate quietly. It contributes to a peaceful atmosphere during use, which aligns with the preferences of many.

Aesthetically, the product generally pleases users. Its attractive design and customizable RGB lighting have been highlights on certain models, enhancing the visual appeal of their systems and adding a touch of personalization.

Installation experiences have varied among users. While some find the installation process straightforward and hassle-free, others have faced challenges, particularly during the mounting process. These experiences highlight the importance of ensuring compatibility with your specific motherboard and case.

In summary, the product's performance and noise levels have generated mixed feedback. While some users are satisfied with its cooling capabilities and quiet operation, others have encountered issues. On the aesthetic front, it generally garners positive remarks for its design and customization options. Installation experiences differ, emphasizing the need to verify compatibility for a smooth setup.

AMD 5800X CPU Box Image

AMD Ryzen 7 5800X

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CPU Details:
Metric Value
Brand AMD
Cooler Name Ryzen 7 5800X
CPU Socket AM4
Cores 8
Thread Count 16
Max Temperature 90°C
Base Clock 3.8GHz
Max Boost Clock 4.7GHz
Cache L1
Cache L2 4MB
Cache L3 32MB
Processor Power Base 105W
Manufacture's Link Ryzen 7 5800X Manufacture's Link

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