ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - vs Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
Updated August 2026 — ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - leads on cooling performa and fan efficiency.
The ID-COOLING FX240 PRO offers superior cooling performance and aesthetics, while the Thermalright Assassin X 120R SE V2 is a budget-friendly option with quieter operation.
Why ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - is better
Cooling Performance
Higher TDP of 300W vs 1550 RPM fan speed
Aesthetics
Sleek all-black design with CD pattern
Airflow
Max airflow of 82.5 CFM vs 66.17 CFM
Why Thermalright Assassin X 120R SE V2 CPU Cooler, 4× is better
Price
Significantly cheaper at $16.59
Noise Level
Quieter operation at under 25.6 dB(A)
Size Compatibility
Height of 148mm fits more cases
Overall score
Specifications
| Spec | ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - | Thermalright Assassin X 120R SE V2 CPU Cooler, 4× |
|---|---|---|
| Pump Speed | 2900 RPM | 1550 RPM |
| Max Airflow | 82.5 CFM | 66.17 CFM |
| Noise Level | N/A | ≤25.6 dB(A) |
| Compatibility | Intel & AMD | Intel & AMD |
| Price | $54.99 | $16.59 |
Dimension comparison
Overview of the ID-COOLING FX240 PRO and Thermalright Assassin X 120R SE V2
The ID-COOLING FX240 PRO Liquid CPU Cooler is a premium 240mm AIO cooler priced at $54.99, while the Thermalright Assassin X 120R SE V2 CPU Cooler is a more budget-friendly option at $16.59. The significant price difference of about 70% highlights a distinct separation in design and functionality between these two cooling solutions.
The ID-COOLING model targets gamers and high-performance computing enthusiasts with its powerful cooling capabilities and aesthetic design, while the Thermalright unit offers a compact, quieter solution for general use, making it a versatile choice for everyday builds.
Cooling Performance
When it comes to cooling performance, the ID-COOLING FX240 PRO stands out with a thermal design power (TDP) rating of 300W, making it suitable for high-performance CPUs. It features a pump that operates at 2900 RPM, ensuring efficient heat dissipation. In contrast, the Thermalright Assassin X 120R SE V2 has a more modest fan speed of 1550 RPM and a maximum airflow of 66.17 CFM. While both coolers are effective, the ID-COOLING's higher RPM and airflow capacity suggest it is better suited for overclocked systems and intensive computing tasks.
Design and Aesthetics
The design of the ID-COOLING FX240 PRO is tailored towards users who appreciate aesthetics in their builds. Its all-black layout and a unique CD pattern on the water block provide a sleek look that blends well with dark-colored PC cases. On the other hand, the Thermalright Assassin X 120R SE V2 has a simpler design, focusing on functionality with a height of 148mm that allows compatibility with medium-sized cases. While it may lack the visual flair of the ID-COOLING, its straightforward design appeals to users who prioritize a clean and unobtrusive look.
Noise Levels
Noise levels are an important consideration for many PC builders. The ID-COOLING FX240 PRO features two 120mm fans, but specific noise levels aren't listed. However, its high RPM may suggest it could be louder under heavy loads. In contrast, the Thermalright Assassin X 120R SE V2 claims a noise level of under 25.6 dB(A), making it a quieter option for users sensitive to sound. For those who require a silent operation, the Thermalright cooler holds a clear advantage.
Compatibility
Both coolers boast broad compatibility with Intel and AMD sockets, making them versatile choices for various builds. The ID-COOLING FX240 PRO supports Intel sockets including LGA1851, 1700, and AMD AM4 and AM5. Similarly, the Thermalright Assassin X 120R SE V2 supports a range of Intel and AMD sockets, ensuring it can fit into most modern systems. This compatibility makes both products appealing to a wide audience of users, whether they are upgrading an existing build or constructing a new one.
Installation Process
The installation process can greatly affect user experience. The ID-COOLING FX240 PRO features a simple cable management system via daisy chain connectors, which helps reduce clutter and makes installation smoother. Meanwhile, the Thermalright Assassin X 120R SE V2 comes with metal fasteners and clear installation instructions, making it user-friendly as well. Both coolers are designed with ease of installation in mind, but the ID-COOLING's cable management may provide an edge for those who prioritize a tidy build.
Price Comparison
The price difference is significant, with the ID-COOLING FX240 PRO retailing for $54.99, while the Thermalright Assassin X 120R SE V2 is available for just $16.59. This makes the Thermalright cooler about 70% cheaper than the ID-COOLING option. Given this price point, the Thermalright model provides a compelling choice for budget-conscious buyers. However, it's essential to weigh this cost against the performance and features offered by each cooler.
User Reviews and Recommendations
While specific user reviews and bestseller rankings were not provided in the data, generally, products like the ID-COOLING FX240 PRO tend to appeal to gamers and overclockers due to their high-performance specifications. The Thermalright Assassin X 120R SE V2, with its quieter operation and lower price, is likely favored by general users or those building systems for less intensive tasks. Ultimately, the choice between the two will depend on the user's specific needs and preferences.
Which should you buy?
In conclusion, choosing between the ID-COOLING FX240 PRO and the Thermalright Assassin X 120R SE V2 comes down to your priorities. If you need top-tier cooling performance, particularly for high-end gaming or overclocking, the ID-COOLING model is worth the investment at $54.99. Conversely, if you're looking for an economical solution that delivers good performance in a quieter package, the Thermalright cooler at $16.59 is an excellent choice. Consider your specific usage scenarios, performance needs, and budget to make the best decision for your build.

