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Thermalright PS120SE CPU Air Cooler vs Thermalright Peerless Assassin 120 SE V2 CPU Cooler

Updated August 2026The Thermalright Peerless Assassin 120 SE V2 offers superior cooling performance and airflow, making it the better choice for high-performance systems. However, the PS120SE is more budget-friendly.

The Thermalright Peerless Assassin 120 SE V2 offers superior cooling performance and airflow, making it the better choice for high-performance systems. However, the PS120SE is more budget-friendly.

Why Thermalright PS120SE CPU Air Cooler is better

lower price

C$44.90 vs C$54.90

quieter operation

≤25.6 dB(A) vs ≤29.5 dB(A)

longer lifespan

20,000 hours vs unspecified

Why Thermalright Peerless Assassin 120 SE V2 CPU Cooler is better

higher airflow

88.19 CFM vs 66.17 CFM

better cooling capacity

TDP 265W vs 280W

dual fans

two fans vs one fan

Overall score

Thermalright PS120SE CPU Air Cooler
75
Thermalright Peerless Assassin 120 SE V2 CPU Cooler
85

Specifications

SpecThermalright PS120SE CPU Air CoolerThermalright Peerless Assassin 120 SE V2 CPU Cooler
Cooling TDP280W265W
Max Airflow66.17 CFM88.19 CFM
Noise Level≤25.6 dB(A)≤29.5 dB(A)
Fan TypeSingle PWMDual PWM
Lifespan20,000 hoursunspecified

Dimension comparison

Thermalright PS120SE CPU Air CoolerThermalright Peerless Assassin 120 SE V2 CPU Cooler

Overview of Thermalright PS120SE and Thermalright Peerless Assassin 120 SE V2

The Thermalright PS120SE CPU Air Cooler is priced at C$44.90, while the Thermalright Peerless Assassin 120 SE V2 CPU Cooler is available for C$54.90. Both coolers come from the same reputable brand and are designed for effective CPU cooling, but they differ in features and specifications that may influence your choice.

Thermalright has built a solid reputation over more than two decades, focusing on the development of computer cooling solutions. The PS120SE is designed for CPUs with a thermal design power (TDP) ranging from 105W to 280W, while the Peerless Assassin has a slightly lower TDP capacity of up to 265W. This gives the PS120SE a slight edge in terms of cooling capability for high-performance CPUs.

Design and Build Quality

In terms of design, the PS120SE measures 125mm in length, 135mm in width, and 154mm in height, weighing 0.9kg. The Peerless Assassin, on the other hand, has similar dimensions but is slightly taller at 155mm, weighing 610g. Both coolers feature a combination of aluminium and copper materials, ensuring durability and heat conductivity.

The PS120SE employs a sleek anodized black frosted top with finely carved pure copper base technology, providing an attractive visual while enhancing thermal performance. In contrast, the Peerless Assassin uses a nickel-plated finish, which not only looks premium but also aids in corrosion resistance. The slight differences in design may appeal to users depending on their aesthetic preferences.

Cooling Performance

When it comes to cooling performance, the PS120SE utilises a PWM fan with a maximum airflow of 66.17 CFM and operates at a noise level of ≤25.6 dB(A). The Peerless Assassin outperforms this with its dual thickened PWM fans, delivering a maximum airflow of 88.19 CFM, albeit with a higher noise level of ≤29.5 dB(A).

This performance difference is significant for users who prioritise cooling efficiency over noise levels. The Peerless Assassin is better suited for overclocked systems or high-performance CPUs where superior cooling is essential, while the PS120SE may be preferable for quieter builds.

Fan Specifications

The PS120SE employs a TL-C12B V2 fan that operates at a maximum speed of 1500 RPM. In contrast, the Peerless Assassin features TL-C12C-X28 V2 fans that can spin up to 1850 RPM. This increased fan speed not only contributes to higher airflow but may also enhance cooling efficiency under load.

Additionally, the PS120SE's fan is 25mm thick, while the Peerless Assassin's fan is slightly thicker at 28mm. The thicker fan design in the Peerless Assassin allows for better airflow and pressure, making it more effective for cooling high-performance components.

Compatibility

Both coolers are compatible with a wide range of CPU sockets, including Intel's LGA1700, LGA1851, and AMD's AM4/AM5. The PS120SE is equipped with mounting plates and fasteners for various CPU slot platforms, ensuring ease of installation. The Peerless Assassin also provides similar compatibility with corresponding mounting hardware included.

While both options excel in compatibility, users should consider their specific CPU socket type when making a choice. Both coolers are designed to accommodate a broad spectrum of modern processors, making them versatile solutions for different system builds.

Durability and Lifespan

In terms of durability, the PS120SE boasts a lifespan of up to 20,000 hours, supported by S-FDB bearings that contribute to its longevity. The Peerless Assassin, while not explicitly stated, uses similar S-FDB bearings and high-quality materials, suggesting it also offers a robust lifespan.

The PS120SE’s construction with industrial-grade PBT + PC material adds to its durability, making it a reliable choice for long-term use. Users looking for a cooler that can withstand years of operation without performance degradation may find the PS120SE appealing, although the Peerless Assassin's build quality should not be underestimated.

Price Comparison

The Thermalright PS120SE is priced at C$44.90, making it the more budget-friendly option. In contrast, the Thermalright Peerless Assassin 120 SE V2 is offered at C$54.90. While the price difference is noticeable, the additional investment in the Peerless Assassin may be justified by its superior cooling performance and dual-fan design.

For users on a tighter budget, the PS120SE presents an excellent value proposition, delivering solid performance at a lower price point. However, those looking for enhanced cooling capabilities may find the extra C$10 for the Peerless Assassin worth the investment.

Which should you buy?

Ultimately, the choice between the Thermalright PS120SE CPU Air Cooler and the Thermalright Peerless Assassin 120 SE V2 CPU Cooler boils down to your specific needs and preferences. If you are seeking a cost-effective solution for moderate cooling requirements, the PS120SE at C$44.90 is a strong contender. However, if you prioritise higher cooling performance and are willing to spend a little more, the Peerless Assassin at C$54.90 stands out with its dual fans and superior airflow capabilities. Assess your cooling needs, budget, and preferences to make an informed decision.

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Thermalright PS120SE CPU Air Cooler vs Thermalright Peerless Assassin 120 SE V2 CPU Cooler | versusfinder