ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - vs Thermalright Peerless Assassin 120 SE V2 CPU
Updated August 2026 — ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - leads on fan efficiency and aesthetics.
The ID-COOLING FX240 PRO offers superior cooling performance and aesthetics, while the Thermalright Peerless Assassin provides excellent value for money. Choose based on your budget and cooling needs.
Why ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - is better
Cooling Performance
Higher TDP rating of 300W
Fan Speed
Fans operate at 2900 RPM
Aesthetic Appeal
Distinctive CD-patterned pump header
Why Thermalright Peerless Assassin 120 SE V2 CPU is better
Price
More budget-friendly at $38.99
Airflow
Higher airflow of 88.89 CFM
Noise Level
Quieter operation at 29.5 dBA
Overall score
Specifications
| Spec | ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - | Thermalright Peerless Assassin 120 SE V2 CPU |
|---|---|---|
| Cooling Type | Liquid | Air |
| Max RPM | 2900 | 1850 |
| Airflow | 82.5 CFM | 88.89 CFM |
| TDP | 300W | Unknown |
| Socket Compatibility | Intel & AMD | Intel & AMD |
Dimension comparison
Overview of the ID-COOLING FX240 PRO
The ID-COOLING FX240 PRO Liquid CPU Cooler is a premium all-in-one (AIO) cooling solution priced at $54.99. This cooler is designed for high-performance computing, supporting a thermal design power (TDP) of up to 300W. The product features two 120mm high-efficient fans that deliver impressive airflow and static pressure, making it suitable for gaming and intense multitasking.
The FX240 PRO comes equipped with a powerful pump that operates at 2900 RPM, ensuring efficient heat dissipation from the CPU. Its sleek all-black design allows it to blend seamlessly into various PC builds, while its unique CD-patterned water block adds a touch of aesthetic appeal. Additionally, it offers compatibility with both Intel and AMD sockets, making it a versatile choice for many users.
Overview of the Thermalright Peerless Assassin 120 SE V2
The Thermalright Peerless Assassin 120 SE V2 CPU Cooler is an affordable air cooling solution, retailing at $38.99. It features a dual tower design with six heat pipes and dual 120mm PWM fans that can reach speeds of up to 1850 RPM. This design enhances heat dissipation and provides stable thermal performance for high-load desktop applications.
With an air flow rate of 88.89 CFM and a noise level of 29.5 dBA, the Peerless Assassin strikes a balance between cooling efficiency and operational quietness. It is compatible with both AMD AM4/AM5 and Intel LGA1851/1700 platforms, making it a practical upgrade for many current mainstream desktop builds. This cooler is a strong option for users looking for reliable cooling without breaking the bank.
Performance Comparison
In terms of cooling performance, the ID-COOLING FX240 PRO offers a maximum airflow of 82.5 CFM, while the Thermalright Peerless Assassin can achieve 88.89 CFM. Although the FX240 PRO has a higher TDP rating of 300W, the Peerless Assassin’s dual tower design and six heat pipes contribute to its efficient heat dissipation.
The FX240 PRO's fans operate at a higher maximum speed of 2900 RPM, compared to the 1850 RPM of the Peerless Assassin. This translates to potentially better cooling performance under heavy loads for the FX240 PRO. However, the Peerless Assassin’s dual 120mm fans provide a strong cooling solution that can handle a variety of workloads effectively, making both coolers quite competitive.
Noise Levels
When considering noise levels, the Thermalright Peerless Assassin operates at a maximum noise level of 29.5 dBA, which is relatively quiet for a CPU cooler. The ID-COOLING FX240 PRO does not specify its noise levels; however, liquid coolers are generally quieter than air coolers at similar performance levels. The operating RPM of the FX240 PRO may produce more noise under load, but its efficiency could offset this concern.
For users prioritizing a quieter computing experience, the Peerless Assassin's lower noise output may be more appealing. Still, for those who demand maximum cooling performance, the FX240 PRO's potential noise levels may be an acceptable trade-off.
Aesthetic Appeal
The aesthetic appeal of the ID-COOLING FX240 PRO is enhanced by its all-black layout and distinctive CD-patterned pump header, making it visually striking in a build with dark interiors. This cooler adds a premium visual touch to PC builds, which can be a significant factor for users looking to showcase their setups.
In contrast, the Thermalright Peerless Assassin has a more utilitarian appearance, focusing primarily on functionality rather than aesthetics. While it may not have the same visual flair as the FX240 PRO, it has a robust design that complements any standard build without drawing attention away from other components.
Installation and Compatibility
The ID-COOLING FX240 PRO is designed for ease of installation with its compatibility across various Intel and AMD sockets, including LGA1851/1700/1200/1151/1150/1155/1156 and AM4/AM5. The daisy chain connector for the fans simplifies cable management, making the installation process more efficient.
The Thermalright Peerless Assassin also boasts broad compatibility with the same socket types, ensuring it can be used in a wide range of systems. Its dual tower design may require more space in the case, but installation is straightforward for most users. Both coolers cater to a similar audience, with user-friendliness being a key selling point for both.
Price Comparison
The ID-COOLING FX240 PRO is priced at $54.99, while the Thermalright Peerless Assassin comes in at a more budget-friendly $38.99, making the Peerless Assassin about 29% cheaper. This significant price difference may influence buyers who are looking for a cost-effective cooling solution without sacrificing performance.
The FX240 PRO’s higher price point reflects its premium features, including liquid cooling capabilities and higher RPM fans. However, for users on a tighter budget, the Peerless Assassin delivers excellent performance at a lower cost, making it an attractive option for value-conscious consumers.
Which should you buy?
Choosing between the ID-COOLING FX240 PRO and the Thermalright Peerless Assassin 120 SE V2 ultimately depends on your specific needs and preferences. If you're looking for a premium liquid cooling solution with superior performance and aesthetics, the FX240 PRO is a solid choice, particularly for high-performance computing and gaming setups. However, if you prioritize affordability and solid cooling performance without the complexities of liquid cooling, the Peerless Assassin offers excellent value for money.
In summary, both coolers have their strengths and cater to different types of users. The ID-COOLING FX240 PRO excels in performance and design, while the Thermalright Peerless Assassin stands out for its price and straightforward installation. Consider your budget, cooling needs, and aesthetic preferences before making a final decision.

