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ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - vs Thermalright Assassin King 120 SE White ARGB CPU

Updated August 2026 — ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - leads on cooling performa and build quality.

The ID-COOLING FX240 PRO offers superior cooling performance and aesthetics, while the Thermalright Assassin King 120 SE is a budget-friendly option with decent performance. Choose based on your cooling needs and budget.

Why ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop - is better

Cooling Performance

Higher TDP rating of 300W

Airflow

Max airflow of 82.5 CFM

Aesthetics

Unique CD pattern on water block

Why Thermalright Assassin King 120 SE White ARGB CPU is better

Price

64% cheaper than ID-COOLING

Noise Level

Quieter operation at 25.6 dB(A)

Weight

Lighter at 0.64 kg

Overall score

ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop -
85
Thermalright Assassin King 120 SE White ARGB CPU
65

Specifications

SpecID-COOLING FX240 PRO Liquid CPU Cooler for Desktop -Thermalright Assassin King 120 SE White ARGB CPU
TDP300WUnknown
Airflow82.5 CFM66.17 CFM
Noise LevelUnknown25.6 dB(A)
CompatibilityIntel & AMDIntel & AMD
Pump TypeLiquidAir

Dimension comparison

ID-COOLING FX240 PRO Liquid CPU Cooler for Desktop -Thermalright Assassin King 120 SE White ARGB CPU

Introduction to the ID-COOLING FX240 PRO and Thermalright Assassin King 120 SE

When it comes to cooling solutions for CPUs, both the ID-COOLING FX240 PRO Liquid CPU Cooler and the Thermalright Assassin King 120 SE White ARGB represent strong contenders in the market. The ID-COOLING FX240 PRO is priced at $54.99, while the Thermalright Assassin King is significantly more affordable at $19.82, making it about 64% cheaper. This price difference indicates a varied target audience for each cooler, with the ID-COOLING likely appealing to high-performance users, while the Thermalright may attract budget-conscious buyers.

Design and Aesthetics

The design of a CPU cooler can play a substantial role in a user’s decision. The ID-COOLING FX240 PRO features an all-black layout that seamlessly blends into dark-themed PC builds while showcasing a unique CD pattern on the water block, enhancing its aesthetic appeal. In contrast, the Thermalright Assassin King 120 SE is equipped with ARGB lighting, providing colorful and vibrant visuals. This cooler's white color scheme offers a clean look that can brighten up a build. While the ID-COOLING leans towards a more understated elegance, the Thermalright caters to gamers and builders who prioritize eye-catching lighting effects.

Performance and Cooling Efficiency

Performance is crucial when selecting a CPU cooler. The ID-COOLING FX240 PRO boasts a powerful pump running at 2900 RPM, capable of dissipating heat effectively with a thermal design power (TDP) rating of 300W, making it suitable for high-performance systems. Its two 120mm fans deliver a maximum airflow of 82.5 CFM, ensuring optimal cooling under intense workloads. On the other hand, the Thermalright Assassin King 120 SE utilizes five heat pipes and a PWM fan that operates at 1550 RPM, providing a maximum airflow of 66.17 CFM. While the Thermalright offers commendable performance, the ID-COOLING’s higher airflow and TDP rating suggest it is better suited for overclocking and demanding applications.

Compatibility with CPU Sockets

Compatibility is a significant factor in choosing a CPU cooler. The ID-COOLING FX240 PRO is designed to work with a wide range of Intel and AMD sockets, including the latest Intel LGA1700 and AMD AM5. This extensive compatibility ensures that it can fit into various systems without any issues. The Thermalright Assassin King 120 SE also supports multiple sockets, including Intel LGA1700 and AMD AM4, making it versatile. However, the ID-COOLING’s broader compatibility gives it an edge for users who may upgrade their CPUs in the future.

Noise Levels and Operation

Noise levels can greatly affect a user’s experience, especially in quiet environments. The ID-COOLING FX240 PRO, while powerful, may produce more noise due to its higher RPMs, although specifics on noise levels are not provided. In contrast, the Thermalright Assassin King 120 SE has a maximum noise level of 25.6 dB(A), making it a quieter option for users who prioritize a serene computing environment. For those who wish to minimize noise while maintaining adequate cooling, the Thermalright might be the preferred choice.

Installation and Cable Management

Ease of installation can significantly impact user satisfaction. The ID-COOLING FX240 PRO offers a daisy chain connector for its fans, simplifying cable management and reducing clutter inside the case. This feature can be especially advantageous for users who value a clean and organized build. The Thermalright Assassin King 120 SE, while straightforward to install, does not highlight any specific features for cable management. For users who prioritize an uncluttered look, the ID-COOLING’s design may provide a better experience.

Pricing and Value

When comparing the value offered by both coolers, the substantial price difference is noteworthy. The ID-COOLING FX240 PRO retails for $54.99, while the Thermalright Assassin King 120 SE is priced at $19.82. This makes the Thermalright about 64% cheaper than the ID-COOLING. For users on a budget or those who do not require extreme cooling capabilities, the Thermalright may represent a more attractive option. However, for those seeking premium cooling performance and aesthetics, the ID-COOLING could justify its higher price.

Which should you buy?

Ultimately, the decision between the ID-COOLING FX240 PRO and the Thermalright Assassin King 120 SE comes down to individual needs and preferences. If you are looking for a high-performance, visually striking liquid cooler with excellent compatibility and cooling efficiency, the ID-COOLING FX240 PRO is a robust choice. However, if you prefer a quieter, budget-friendly air cooler with decent performance and appealing aesthetics, the Thermalright Assassin King 120 SE offers great value. Consider your priorities—whether that be performance, price, or aesthetics—to make the best choice for your build.