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Thermalright Peerless Assassin 120 SE CPU Cooler vs Thermalright PS120SE CPU Air Cooler

Updated August 2026The Thermalright Peerless Assassin 120 SE offers enhanced cooling performance and aesthetics, making it the better choice for users who value these features. However, the PS120SE is a solid option for those seeking a more straightforward and cost-effective solution.

The Thermalright Peerless Assassin 120 SE offers enhanced cooling performance and aesthetics, making it the better choice for users who value these features. However, the PS120SE is a solid option for those seeking a more straightforward and cost-effective solution.

Why Thermalright Peerless Assassin 120 SE CPU Cooler is better

Cooling Performance

Higher fan speed of 1550 RPM compared to 1500 RPM.

Aesthetics

Includes ARGB lighting for enhanced visual appeal.

Build Quality

Dual tower heatsink configuration for better heat dissipation.

Why Thermalright PS120SE CPU Air Cooler is better

Price

Lower price at C$44.90 compared to C$48.90.

Durability

S-FDB technology ensures longer service life.

Weight

Slightly lighter at 0.9kg compared to Peerless Assassin.

Overall score

Thermalright Peerless Assassin 120 SE CPU Cooler
85
Thermalright PS120SE CPU Air Cooler
78

Specifications

SpecThermalright Peerless Assassin 120 SE CPU CoolerThermalright PS120SE CPU Air Cooler
Fan Speed1550 RPM1500 RPM
Airflow66.17 CFM66.17 CFM
Noise Level≤25.6 dB(A)≤25.6 dB(A)
TDP Support280W280W
Socket CompatibilityLGA1150/1700/AM4LGA1150/1700/AM4

Dimension comparison

Thermalright Peerless Assassin 120 SE CPU CoolerThermalright PS120SE CPU Air Cooler

Brand Overview

Both the Thermalright Peerless Assassin 120 SE CPU Cooler and the Thermalright PS120SE CPU Air Cooler come from Thermalright, a brand with over 20 years of experience in the computer cooling market. However, the Peerless Assassin is noted for its high-performance capabilities and dual tower heatsink configuration. The Peerless Assassin 120 SE is priced at C$48.90, making it slightly more expensive than the PS120SE, which is offered at C$44.90. This price difference reflects the additional features and performance capabilities of the Peerless Assassin.

Design and Build Quality

When comparing design and build quality, the Thermalright Peerless Assassin has dimensions of 125(L)x135(W)x155(H)mm, whereas the PS120SE measures 125(L)x135(W)x154(H)mm. The Peerless Assassin features an aluminum and copper heat sink, while the PS120SE utilises an anodized black frosted top and pure copper base. Both coolers are designed to avoid memory interference, but the Peerless Assassin's dual tower configuration may provide enhanced cooling performance. The subtle height difference of 1mm could be crucial for specific cases, but both models are compatible with a wide range of chassis.

Cooling Performance

In terms of cooling performance, the Peerless Assassin is equipped with dual high-performance ARGB fans that can spin up to 1550 RPM, generating a rated airflow of 66.17 CFM with a noise level of ≤25.6 dB(A). The PS120SE has a slightly lower fan speed of 1500 RPM, but similarly achieves an airflow of 66.17 CFM and noise levels of ≤25.6 dB(A). Both coolers can handle CPUs with a Thermal Design Power (TDP) of up to 280W, ensuring they can support a wide range of processors. The cooling efficiency is critically important for gamers and high-performance users, making these models suitable for intense tasks.

Installation and Compatibility

Installation and compatibility are critical factors for any CPU cooler. The Peerless Assassin supports a wide range of Intel sockets, including LGA1150, LGA1151, LGA1155, LGA1156, LGA1200, LGA1700, and LGA1851, as well as AMD sockets AM4 and AM5. The PS120SE matches this compatibility, supporting similar Intel and AMD sockets. However, the Peerless Assassin requires the original motherboard’s built-in backplate for AM4 and AM5 installations, which is not included. Both coolers are designed for ease of installation, appealing to DIY enthusiasts and builders.

Fan Features

Both coolers feature PWM fans for adjustable performance. The Peerless Assassin uses TL-C12CW-S fans with ARGB lighting, enhancing aesthetic appeal while maintaining performance. On the other hand, the PS120SE utilizes the TL-C12B V2, which is designed for industrial performance but lacks the RGB features. Both fans operate at similar noise levels (≤25.6 dB(A)) and provide efficient airflow (66.17 CFM). Users prioritising aesthetics may lean towards the Peerless Assassin, while those focusing purely on performance may find the PS120SE to be equally effective.

Longevity and Durability

Durability is emphasized in both models, with the PS120SE boasting S-FDB (Self-Lubricating Fluid Dynamic Bearing) technology, which ensures a longer service life of up to 20,000 hours. The Peerless Assassin’s use of high-quality materials also promises longevity, although specific longevity metrics are not stated. Both coolers are built to withstand extensive usage, making them suitable for both gaming and professional applications. The emphasis on durability adds value, ensuring that buyers are investing in a product that will last.

Price and Value

The Thermalright Peerless Assassin 120 SE is priced at C$48.90, while the PS120SE is slightly cheaper at C$44.90. The price difference of C$4 may seem minimal, but it could be indicative of the additional features offered by the Peerless Assassin, such as ARGB lighting and a more complex cooling system. Given the performance capabilities and build quality of both coolers, consumers must consider whether the extra features of the Peerless Assassin justify the higher price, or if the more straightforward PS120SE meets their needs effectively.

Which should you buy?

Ultimately, the decision between the Thermalright Peerless Assassin 120 SE CPU Cooler and the Thermalright PS120SE CPU Air Cooler hinges on individual preferences and requirements. If you value aesthetics and slightly enhanced cooling performance, the Peerless Assassin is worth the extra C$4. However, for those prioritising straightforward functionality and a marginally lower price, the PS120SE represents a solid choice. Both options are reliable and effective, making either a worthy addition to your cooling setup.

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Thermalright Peerless Assassin 120 SE CPU Cooler vs Thermalright PS120SE CPU Air Cooler | versusfinder