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Thermalright PS120SE CPU Air Cooler vs Thermalright Assassin X 120 SE ARGB CPU Air Cooler

Updated August 2026The Thermalright PS120SE offers superior cooling performance and higher TDP support, making it the better choice for high-performance CPUs. However, the Assassin X 120 SE is a more budget-friendly option.

The Thermalright PS120SE offers superior cooling performance and higher TDP support, making it the better choice for high-performance CPUs. However, the Assassin X 120 SE is a more budget-friendly option.

Why Thermalright PS120SE CPU Air Cooler is better

Higher TDP

PS120SE supports TDP up to 280W

Larger size

PS120SE has larger dimensions for better cooling

More heat pipes

PS120SE uses seven heat pipes for enhanced thermal management

Why Thermalright Assassin X 120 SE ARGB CPU Air Cooler is better

Lower price

Assassin X 120 SE is priced at C$24.29

Compact design

Assassin X 120 SE is smaller and lighter

Sufficient performance

Assassin X 120 SE still offers good cooling for mid-range CPUs

Overall score

Thermalright PS120SE CPU Air Cooler
85
Thermalright Assassin X 120 SE ARGB CPU Air Cooler
70

Specifications

SpecThermalright PS120SE CPU Air CoolerThermalright Assassin X 120 SE ARGB CPU Air Cooler
PriceC$44.90C$24.29
TDP Range105W-280W125W-225W
Fan Speed1500 RPM1550 RPM
Airflow66.17 CFM66.17 CFM
Noise Level25.6 dB(A)25.6 dB(A)

Dimension comparison

Thermalright PS120SE CPU Air CoolerThermalright Assassin X 120 SE ARGB CPU Air Cooler

Brand Overview

Both the Thermalright PS120SE CPU Air Cooler and the Thermalright Assassin X 120 SE ARGB CPU Air Cooler come from the reputable brand Thermalright, which has over 20 years of experience in the development of computer cooling solutions. The PS120SE is priced at C$44.90, while the Assassin X 120 SE is more budget-friendly at C$24.29. Despite the price difference, both products reflect the brand's commitment to quality and innovation in the CPU cooling market.

Design and Build Quality

The Thermalright PS120SE has a dimension of 125mm x 135mm x 154mm and weighs 0.9 kg, showcasing a robust design aimed at high-performance cooling. It features a full aluminum fin structure and a finely carved pure copper base, enhancing its heat dissipation capabilities. In contrast, the Assassin X 120 SE is slightly more compact, measuring 125mm x 71mm x 148mm and weighing 0.645 kg. While both coolers are made from aluminum, the PS120SE's larger size may provide a greater cooling surface area, making it potentially more effective for higher TDP CPUs.

Cooling Performance

When it comes to cooling performance, the PS120SE supports a thermal design power (TDP) range of 105W to 280W, making it suitable for a variety of high-performance CPUs. It employs a PWM fan that can reach a maximum airflow of 66.17 CFM at a noise level of 25.6 dB(A). The Assassin X 120 SE, on the other hand, has a TDP range of 125W to 225W, with the same maximum airflow and noise specifications. Although both coolers are designed for efficient cooling, the PS120SE may have an edge for users with higher TDP requirements.

Fan Technology

Both coolers utilise PWM fan technology for optimal performance. The PS120SE features the TL-C12B V2 fan, which operates at a speed of 1500 RPM ± 10%. In comparison, the Assassin X 120 SE is equipped with the TL-C12C fan, which runs at a slightly higher speed of 1550 RPM ± 10%. Both fans provide an airflow of 66.17 CFM and maintain a noise level of 25.6 dB(A). While the Assassin X 120 SE's fan speed is marginally higher, the overall cooling efficiency may still depend on the specific CPU load and case airflow.

Compatibility

Compatibility is crucial when choosing a CPU cooler. The PS120SE supports a wide range of CPU sockets, including Intel's LGA1700/1851/1150/1151/1155/1156/1200 and AMD's AM4/AM5. The Assassin X 120 SE is also compatible with multiple sockets, including Intel's 115X/1200/1700 and AMD's AM4. Both coolers include corresponding mounting plates or fasteners for different platforms, ensuring that users can easily install them on their systems without compatibility issues.

Thermal Management Techniques

The PS120SE utilises an upgraded AGHP (Advanced Gravity Heat Pipe) technique with seven 6mm heat pipes to enhance thermal management, allowing for efficient heat dissipation regardless of orientation. The Assassin X 120 SE also employs the AGHP technique, but with four 6mm heat pipes. While both models are effective in managing heat, the increased number of heat pipes in the PS120SE may contribute to superior cooling performance under heavy workloads.

Noise Levels

Both the Thermalright PS120SE and the Assassin X 120 SE maintain a low noise level of 25.6 dB(A) under maximum load. This means that users can expect quiet operation from both coolers, making them suitable for gaming or work environments where noise can be a concern. Despite their different designs, both units effectively balance cooling performance and noise output, ensuring a pleasant computing experience.

Which should you buy?

Choosing between the Thermalright PS120SE CPU Air Cooler and the Thermalright Assassin X 120 SE ARGB CPU Air Cooler ultimately comes down to your specific needs and budget. If you require a cooler that supports higher TDPs and offers a robust design, the PS120SE at C$44.90 may be the right choice. However, for those looking for a more affordable option without sacrificing too much in terms of performance, the Assassin X 120 SE at C$24.29 is a commendable alternative. Both coolers are well-engineered, but your decision should reflect your cooling requirements and budget constraints.

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Thermalright PS120SE CPU Air Cooler vs Thermalright Assassin X 120 SE ARGB CPU Air Cooler | versusfinder