ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - vs Thermalright Assassin X120 Refined SE CPU Air
Updated July 2026 — ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - wins on length and width, Thermalright Assassin X120 Refined SE CPU Air wins on height.
The ID-COOLING FX240 PRO offers superior cooling performance and aesthetics, while the Thermalright Assassin X120 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 Performance
ID-COOLING has a TDP of 300W vs Thermalright's adequate cooling.
Aesthetics
ID-COOLING features a premium design with a CD pattern.
Airflow
ID-COOLING provides 82.5 CFM airflow compared to 66.17 CFM.
Why Thermalright Assassin X120 Refined SE CPU Air is better
Price
Thermalright is significantly cheaper at $17.90.
Noise Level
Thermalright operates at a quieter 25.6 dB(A).
Durability
Thermalright has a service life of up to 20,000 hours.
Overall score
Specifications
| Spec | ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - | Thermalright Assassin X120 Refined SE CPU Air |
|---|---|---|
| TDP | 300W | N/A |
| Max RPM | 2900 | 1550 |
| Noise Level | N/A | 25.6 dB(A) |
| Compatibility | Intel & AMD | Intel & AMD |
| Price | $54.99 | $17.90 |
Dimension comparison
Overview of the Products
The ID-COOLING FX240 PRO Liquid CPU Cooler and the Thermalright Assassin X120 Refined SE CPU Air Cooler serve distinct needs in the CPU cooling market. The ID-COOLING is a liquid cooler priced at $54.99, while the Thermalright is an air cooler available for just $17.90. This clear price difference of about 206% indicates that the ID-COOLING targets users looking for premium cooling performance, while the Thermalright appeals to budget-conscious consumers or those with less demanding cooling needs.
Cooling Performance
When it comes to cooling efficiency, the ID-COOLING FX240 PRO boasts a maximum TDP of 300W, making it suitable for high-performance gaming and computing setups. Its dual 120mm fans deliver a maximum airflow of 82.5 CFM, which is impressive for liquid cooling systems. In contrast, the Thermalright Assassin X120, with its 4 heat pipes and a maximum airflow of 66.17 CFM from its PWM fan, provides adequate cooling for most mid-range CPUs. This shows that while both coolers can effectively manage heat, the ID-COOLING is better equipped for high-performance scenarios.
Noise Levels
Noise can be a significant consideration for PC builders, especially in quiet environments. The Thermalright Assassin X120 is designed to operate at a noise level of 25.6 dB(A), which is relatively quiet for an air cooler. The ID-COOLING FX240 PRO, while not explicitly rated, generally operates with two fans at 2900 RPM, which can generate more noise under load. This suggests that the Thermalright may be the better choice for users prioritizing a silent operation, particularly in media or home office settings.
Aesthetic Appeal
For users concerned with aesthetics, the ID-COOLING FX240 PRO features an all-black layout that can seamlessly blend into many PC builds, especially those with darker interiors. Its water block design, adorned with a special CD pattern, adds a premium touch to the overall look. On the other hand, the Thermalright Assassin X120 has an aluminum heatsink cover that offers a clean, professional appearance but may not have the same level of visual flair. If aesthetics are a priority, the ID-COOLING may have the edge.
Installation and Compatibility
Both coolers are designed to be compatible with a wide range of Intel and AMD sockets. The ID-COOLING FX240 PRO supports Intel sockets such as LGA1851 and AMD AM4/AM5, making it versatile for various builds. Meanwhile, the Thermalright Assassin X120 also supports a similar range of sockets, including Intel LGA 1150 and AMD AM4/AM5. Installation ease varies; the ID-COOLING includes a daisy chain fan connector for simpler cable management, which can be a boon to builders looking for a clean setup. In this category, the ID-COOLING may appeal more to those who value streamlined installation.
Durability and Lifespan
Durability is crucial for long-term performance, and the Thermalright Assassin X120 is built with AGHP technology, which allows the heat pipes to perform efficiently regardless of orientation. This cooler boasts a service life of up to 20,000 hours, ensuring reliability over time. The ID-COOLING FX240 PRO, while not explicitly rated for lifespan, relies on its high-performance pump and quality materials, which suggest a good durability standard. However, without specific longevity claims, the Thermalright may provide more assurance for long-term use.
Target Audience
The ID-COOLING FX240 PRO is aimed at gamers and high-performance users who demand extreme cooling capabilities and are willing to invest in a liquid cooling system. Its price point reflects this, making it suitable for those building high-end rigs. Conversely, the Thermalright Assassin X120 targets budget-conscious users or casual gamers who need reliable cooling without the extra bells and whistles. Its significantly lower price of $17.90 makes it an attractive option for entry-level builds or users who prioritize cost over performance.
Which should you buy?
In conclusion, the choice between the ID-COOLING FX240 PRO and the Thermalright Assassin X120 depends largely on your specific needs and budget. If you’re building a high-performance system that demands superior cooling and aesthetics, the ID-COOLING is worth the investment at $54.99. However, if you’re looking for an affordable, reliable air cooler for a mid-range setup, the Thermalright at $17.90 offers excellent value. Ultimately, your decision should align with your cooling requirements, budget constraints, and aesthetic preferences.

