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Thermalright Assassin X 120R Digital ARGB Black vs Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes

Updated August 2026 — Thermalright Assassin X 120R Digital ARGB Black wins on design and cooling performa, Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes wins on noise level and compatibility.

The Thermalright Assassin X 120R offers a better price and unique features like a digital display, while the PS120SE excels in quieter operation and durability. Choose based on your priorities.

Why Thermalright Assassin X 120R Digital ARGB Black is better

Price

Assassin X 120R is $24.90, PS120SE is $35.90

Digital Display

Assassin X 120R features a digital screen

Higher RPM

Assassin X 120R fan speed reaches 2000 RPM

Why Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes is better

Quieter

PS120SE operates at 25.6 dB(A)

More Heat Pipes

PS120SE has 7 heat pipes compared to 4

Durability

PS120SE has a longer service life of 20,000 hours

Overall score

Thermalright Assassin X 120R Digital ARGB Black
85
Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes
78

Specifications

SpecThermalright Assassin X 120R Digital ARGB BlackThermalright PS120SE CPU Air Cooler, 7 Heat Pipes
Fan Speed2000 RPM1500 RPM
Noise Level29.8 dB(A)25.6 dB(A)
Heat Pipes47
Price$24.90$35.90
CompatibilityAM4/AM5, LGA 1851/1700AM4/AM5, LGA 1700/1150/1151

Dimension comparison

Thermalright Assassin X 120R Digital ARGB BlackThermalright PS120SE CPU Air Cooler, 7 Heat Pipes

Introduction to Thermalright CPU Coolers

When it comes to CPU coolers, Thermalright has established a solid reputation for delivering high-performance products. In this comparison, we will examine two of their notable offerings: the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Thermalright PS120SE CPU Air Cooler. Each cooler has its unique features and specifications that cater to different needs. The Assassin X 120R is priced at $24.90, while the PS120SE comes in at $35.90, making the former approximately 30% cheaper.

Design and Aesthetics

The Thermalright Assassin X 120R features a striking digital screen top cover that not only enhances its aesthetics but also displays crucial system information, such as CPU and GPU temperatures. This cooler stands at 151mm tall and is designed to fit most cases without compromising performance. In comparison, the PS120SE has a more traditional look with an anodized black frosted top but lacks a digital display. It measures 154mm in height, which is slightly taller but still compatible with a wide range of chassis models. Each cooler has a unique appeal, but the Assassin X 120R's digital aesthetics may attract users who value both functionality and style.

Cooling Performance

Both coolers are engineered for effective heat dissipation, but they use different technologies to achieve this. The Assassin X 120R utilizes a single tower design with four heat pipes and a fan that can spin up to 2000 RPM, delivering an air volume of 70.84 CFM. On the other hand, the PS120SE boasts seven heat pipes and dual 120mm fans that operate at a speed of 1500 RPM, resulting in a maximum airflow of 66.17 CFM. While the PS120SE's dual-fan design might suggest better cooling capabilities, the higher RPM of the Assassin X 120R compensates for its single-fan setup, potentially giving it an edge in performance.

Noise Levels

Noise is a critical factor to consider when selecting a CPU cooler. The Thermalright Assassin X 120R operates at a maximum noise level of 29.8 dB(A), which is relatively quiet, especially for a cooler that can reach 2000 RPM. In contrast, the PS120SE is quieter at a maximum of 25.6 dB(A) while still providing ample cooling. This 4.2 dB(A) difference may be significant for users sensitive to noise, making the PS120SE a better option for those prioritizing a silent operation.

Compatibility

Compatibility is essential in ensuring that the cooler fits your system. The Assassin X 120R supports both Intel and AMD sockets, including Intel LGA 1851, 1700, and various AM4/AM5 configurations. Similarly, the PS120SE is compatible with Intel LGA 1700, 1150, 1151, and AMD AM4/AM5 sockets. Both coolers come with installation accessories, but the Assassin X 120R highlights its ease of installation with video instructions available. Compatibility is similar in both models, making either a suitable choice for most modern systems.

Build Quality and Durability

Both coolers exhibit high-quality build characteristics, but they differ in some aspects. The Assassin X 120R features a symmetrical all-aluminum fin design, optimizing the heat dissipation area. It claims to manage CPU TDP effectively while maintaining a stylish appearance. The PS120SE, utilizing AGHP 4.0 technology, boasts a longer service life of about 20,000 hours and is made from industrial-grade materials. This could imply that the PS120SE may offer better longevity, which is an essential factor for users looking for a durable cooling solution.

Fan Technology

Fan technology plays a crucial role in the overall cooling efficiency of CPU coolers. The Assassin X 120R uses a TL-P12-S PWM fan that operates at up to 2000 RPM, providing a high wind pressure of 2.63MM H2O. This is beneficial for effective heat dissipation. Meanwhile, the PS120SE employs TL-C12B V2 fans that operate at a slightly lower maximum speed of 1500 RPM but maintain a decent airflow. The choice of fan technology may influence users who require specific performance characteristics, especially in high-performance scenarios.

Price Comparison

The price difference between the two coolers is notable. The Thermalright Assassin X 120R is available for $24.90, while the PS120SE is priced at $35.90. This makes the Assassin X 120R about 30% cheaper than the PS120SE, which could be a compelling factor for budget-conscious buyers. However, the PS120SE's higher price may be justified for those seeking advanced features, better build quality, or a quieter operation.

Which should you buy?

Ultimately, the choice between the Thermalright Assassin X 120R Digital ARGB Black CPU Cooler and the Thermalright PS120SE CPU Air Cooler depends on your specific needs and preferences. If you are looking for an aesthetically pleasing cooler with a digital display and a lower price point, the Assassin X 120R may be the better option for you. However, if you prioritize a quieter operation, advanced fan technology, and potentially greater durability, the PS120SE is worth the investment. Both coolers offer solid performance, so the final decision will hinge on what features you value the most in your CPU cooling solution.