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Thermalright Assassin X 120R SE V2 CPU Cooler, 4× vs Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes

Updated August 2026 — Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes leads on cooling performa and build quality.

The Thermalright Assassin X 120R SE V2 offers great value for budget-conscious users, while the PS120SE excels in high-performance cooling. Choose based on your specific needs.

Why Thermalright Assassin X 120R SE V2 CPU Cooler, 4× is better

Price

Assassin X 120R SE V2 is significantly cheaper.

Size

More compact design fits smaller cases.

Noise Level

Both have similar noise levels, but A is cheaper.

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

Cooling Performance

PS120SE has advanced AGHP technology.

Heat Pipes

More heat pipes for better heat dissipation.

Durability

Higher build quality and materials used.

Overall score

Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
75
Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes
85

Specifications

SpecThermalright Assassin X 120R SE V2 CPU Cooler, 4×Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes
Fan Speed1550 RPM1500 RPM
Airflow66.17 CFM66.17 CFM
Noise Level25.6 dB(A)25.6 dB(A)
Socket CompatibilityIntel/AMDIntel/AMD
Cooling TechnologyS-FDBAGHP 4.0

Dimension comparison

Thermalright Assassin X 120R SE V2 CPU Cooler, 4×Thermalright PS120SE CPU Air Cooler, 7 Heat Pipes

Overview of Thermalright Assassin X 120R SE V2 CPU Cooler

The Thermalright Assassin X 120R SE V2 CPU Cooler is priced at $16.59, making it an economical choice for users looking to improve their CPU cooling solutions. This cooler features four 6mm heat pipes and a 120mm RGB PWM fan that operates at a speed of 1550 RPM. It is designed for compatibility with various Intel and AMD CPU sockets, including Intel 1700, 1150, 1151, and AMD AM4 and AM5. The cooler’s dimensions are 120(L)x71(W)x148(H)mm, providing a compact design that fits well in medium-sized cases.

The Assassin X 120R SE V2 emphasizes quiet cooling performance with a noise level of 25.6dB(A) and airflow of 66.17 CFM. Its S-FDB bearings contribute to reduced noise while maintaining effective cooling, ensuring that users can enjoy a quieter operating environment.

Overview of Thermalright PS120SE CPU Air Cooler

The Thermalright PS120SE CPU Air Cooler is priced at $35.90, which is about 117% more expensive than the Assassin X 120R SE V2. This cooler boasts a more complex design with seven heat pipes and utilizes AGHP 4.0 technology, which enhances cooling performance through its improved heat transfer capabilities. The PS120SE is also compatible with the same Intel and AMD CPU sockets as the Assassin, making it versatile for different builds.

Though larger in size at 125(L)x135(W)x154(H)mm, the PS120SE is designed to maximize heat dissipation with its fully aluminum fins and finely carved pure copper base. It features dual 120mm TL-C12B V2 PWM fans that operate at a speed of 1500 RPM, yielding an airflow of 66.17 CFM and a similar noise level of 25.6dB(A). This makes it an excellent option for users seeking high-performance cooling in a robust design.

Design and Build Quality Comparison

The Thermalright Assassin X 120R SE V2 has a compact and efficient design that lends itself well to smaller cases, measuring 148mm in height. Its aluminum heat sink and metal fasteners provide solid performance while ensuring ease of installation on Intel and AMD platforms. The aesthetic appeal of the RGB lighting adds a modern touch, making it suitable for builds that emphasize visual flair.

Conversely, the PS120SE's design focuses on maximizing thermal dissipation with its seven heat pipes and larger dimensions. It features an anodized black frosted top and an industrial-grade build quality that enhances its durability. This cooler is slightly taller at 154mm but is designed to avoid memory interference, making it a great fit for taller RAM modules.

Performance and Cooling Efficiency

When it comes to cooling performance, both coolers are designed to handle a variety of workloads, but they do so in different ways. The Assassin X 120R SE V2, with its four heat pipes and high-performance fan, provides effective cooling suitable for mid-range CPUs and moderate overclocking. It offers an impressive cooling performance while maintaining a low noise level, making it a well-rounded choice for many users.

On the other hand, the PS120SE, with its seven heat pipes and AGHP 4.0 technology, can handle a higher thermal design power (TDP) ranging from 105W to 280W. This makes it more suitable for high-performance CPUs that are often pushed to their limits. While both coolers produce similar noise levels, the PS120SE's advanced technology may deliver superior cooling efficiency under heavier loads.

Installation Process

Both the Thermalright Assassin X 120R SE V2 and PS120SE are designed for user-friendly installation, featuring included mounting hardware for various Intel and AMD sockets. The Assassin cooler’s compact size means it can be easily installed in tight spaces without obstructing RAM slots. Its accompanying installation video and instructions aid less experienced users in the setup process.

The installation of the PS120SE is also straightforward, though its larger size may require a bit more planning regarding space within the case. It is important to consider case compatibility, especially for builds with limited space. Both coolers provide clear instructions, but the PS120SE may take slightly longer due to its more complex assembly.

Noise Levels and Operation

Noise levels are crucial for many users when selecting a CPU cooler, and both the Assassin X 120R SE V2 and PS120SE excel in this area. Each cooler operates at a maximum noise level of 25.6dB(A), which is considered very quiet. The S-FDB bearings used in both models are designed to minimize noise while maintaining efficient cooling performance.

Users can expect a similar acoustic profile from both coolers, ensuring that neither will disturb a quiet office environment or gaming setup. However, given their different designs, the PS120SE may provide slightly better cooling performance during heavy workloads without increasing noise levels.

Pricing and Value Proposition

The Thermalright Assassin X 120R SE V2 offers a clear advantage in pricing, retailing at $16.59, making it an affordable entry point for those looking to upgrade their cooling solution. In contrast, the PS120SE is priced at $35.90, which reflects its advanced features and enhanced cooling capacity.

The price difference of about $19.31 represents a significant markup, but for users seeking maximum cooling performance, the investment could be justified. The choice between the two will largely depend on the user's specific cooling needs and budget constraints.

Which should you buy?

The decision between the Thermalright Assassin X 120R SE V2 and the PS120SE largely depends on your cooling needs and budget. If you are looking for a budget-friendly option that provides solid performance for mid-range CPUs, the Assassin X 120R SE V2 is a great choice. However, if you are building a high-performance system that demands superior cooling, the PS120SE’s advanced features and greater heat dissipation capabilities may warrant its higher price. Ultimately, both coolers are excellent in their respective categories, catering to different user requirements.