ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - vs Thermalright Peerless Assassin 120 Mini Black CPU
Updated August 2026 — ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - leads on design and cooling performa.
The ID-COOLING FX240 PRO offers superior cooling performance, while the Thermalright Peerless Assassin is a budget-friendly option. Choose based on your cooling needs and budget.
Why ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - is better
Cooling Power
Higher TDP of 300W vs 150W
Airflow
82.5 CFM vs 66.87 CFM
Pump Speed
2900 RPM vs 1500 RPM
Why Thermalright Peerless Assassin 120 Mini Black CPU is better
Price
$34.39 vs $54.99
Noise Level
≤ 25.6 dB(A) vs higher noise
Compact Design
Better for smaller cases
Overall score
Specifications
| Spec | ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - | Thermalright Peerless Assassin 120 Mini Black CPU |
|---|---|---|
| Pump Speed | 2900 RPM | 1500 RPM |
| Airflow | 82.5 CFM | 66.87 CFM |
| Noise Level | Higher | ≤ 25.6 dB(A) |
| Compatibility | Intel & AMD | Intel & AMD |
| Price | $54.99 | $34.39 |
Dimension comparison
Overview of ID-COOLING FX240 PRO Liquid CPU Cooler
The ID-COOLING FX240 PRO Liquid CPU Cooler is priced at $54.99 and is designed for high-performance computing systems with a thermal design power (TDP) of 300W. This cooler features a 240mm AIO setup with two 120mm fans that deliver an airflow of 82.5 CFM, making it suitable for gaming and intensive tasks. The cooler's pump operates at a maximum speed of 2900 RPM, ensuring efficient heat dissipation from the CPU. Its all-black design makes it visually appealing and versatile for different PC builds, while the special CD pattern on the water block adds a premium look.
Overview of Thermalright Peerless Assassin 120 Mini Black CPU Cooler
The Thermalright Peerless Assassin 120 Mini Black CPU Cooler is a more budget-friendly option at $34.39, making it about 17% cheaper than the ID-COOLING model. This cooler employs AGHP technology with six heat pipes that enhance heat dissipation. It is compatible with a wide range of Intel and AMD sockets, including LGA1851 and AM4/AM5. The 120mm PWM fan operates at a speed of 1500 RPM, providing a maximum airflow of 66.87 CFM while maintaining a noise level of ≤ 25.6 dB(A). Its compact design makes it suitable for smaller cases, but it still delivers reliable performance.
Performance Comparison
In terms of performance, the ID-COOLING FX240 PRO is positioned for better thermal management with its 300W TDP capacity and powerful 2900 RPM pump. The dual 120mm fans generate a higher airflow of 82.5 CFM, which is a significant advantage for cooling demanding setups. On the other hand, the Thermalright Peerless Assassin, while efficient with its 1500 RPM fan and 66.87 CFM airflow, is primarily designed for mid-range systems. This makes the FX240 PRO more suitable for high-performance gaming rigs or workstations that require superior cooling.
Compatibility and Installation
Both coolers boast compatibility with a variety of Intel and AMD socket types, ensuring that users can integrate them into their systems without hassle. The ID-COOLING FX240 PRO supports Intel sockets like LGA1700, LGA1200, and AMD's AM4/AM5, similar to the Thermalright Peerless Assassin which supports sockets including LGA1851 and AM4/AM5 as well. However, the installation complexity may vary. The FX240 PRO features a daisy-chain connector for simpler cable management, while the Peerless Assassin provides an installation kit that is noted for its adaptability across different CPU slots.
Aesthetic Appeal
When it comes to aesthetics, the ID-COOLING FX240 PRO takes a slight edge with its all-black layout and unique CD pattern on the water block, appealing to users looking for a premium look. This design not only enhances the visual appeal of a build but also allows it to blend seamlessly into darker PC cases. The Thermalright Peerless Assassin, while entirely black with a modern finish, lacks the same level of visual flair and customization options. This may be a consideration for users who prioritize aesthetics alongside functionality.
Noise Levels
Noise levels are an essential factor for many users, especially those who prefer a quieter computing experience. The ID-COOLING FX240 PRO, despite its higher performance, operates with fans that can generate more noise due to their higher RPM. The Thermalright Peerless Assassin, with its maximum noise level of ≤ 25.6 dB(A), offers a quieter alternative, making it an attractive option for users who work in noise-sensitive environments. This difference may influence the decision for users who prioritize a quieter operation over sheer cooling power.
Price Comparison
The ID-COOLING FX240 PRO is priced at $54.99, while the Thermalright Peerless Assassin is available for $34.39. This makes the FX240 PRO approximately 60% more expensive than the Peerless Assassin. However, the price difference reflects the performance capabilities of the ID-COOLING model, which is designed for high-performance applications. Users on a tighter budget or those with less demanding cooling needs may find the Thermalright model to be a better value, whereas those seeking top-tier cooling may justify the higher cost for the FX240 PRO.
Which should you buy?
Choosing between the ID-COOLING FX240 PRO and the Thermalright Peerless Assassin 120 Mini Black CPU Cooler ultimately depends on individual needs and preferences. If you're looking for premium cooling performance and can accommodate the higher price, the ID-COOLING FX240 PRO is the superior choice for high-performance systems. However, if you're seeking an effective, budget-friendly solution for a mid-range build, the Thermalright Peerless Assassin is a solid option that delivers reliable performance without breaking the bank.

