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ID-COOLING SE-903-XT V2 Black CPU Air Cooler, vs Thermalright Assassin King 120 SE White ARGB CPU

Updated August 2026 — Thermalright Assassin King 120 SE White ARGB CPU leads on compatibility and installation.

The ID-COOLING SE-903-XT V2 offers great value for budget-conscious users, while the Thermalright Assassin King 120 SE excels in cooling performance and aesthetics.

Why ID-COOLING SE-903-XT V2 Black CPU Air Cooler, is better

Price

ID-COOLING is cheaper by $4.83

Size

ID-COOLING is more compact for small cases

Noise

ID-COOLING emphasizes low noise operation

Why Thermalright Assassin King 120 SE White ARGB CPU is better

Cooling

Thermalright has superior airflow with 5 heatpipes

Aesthetics

Thermalright features customizable ARGB lighting

Fan Size

Thermalright uses a larger 120mm fan for better cooling

Overall score

ID-COOLING SE-903-XT V2 Black CPU Air Cooler,
75
Thermalright Assassin King 120 SE White ARGB CPU
85

Specifications

SpecID-COOLING SE-903-XT V2 Black CPU Air Cooler,Thermalright Assassin King 120 SE White ARGB CPU
Price$14.99$19.82
Noise LevelLow≤25.6 dB(A)
CompatibilityIntel & AMDIntel & AMD
AirflowN/A66.17 CFM
Fan TypePWMPWM with ARGB

Dimension comparison

ID-COOLING SE-903-XT V2 Black CPU Air Cooler,Thermalright Assassin King 120 SE White ARGB CPU

Overview of the ID-COOLING SE-903-XT V2 Black CPU Air Cooler

The ID-COOLING SE-903-XT V2 Black CPU Air Cooler is priced at $14.99, making it a budget-friendly option for users seeking reliable cooling. This model features a compact tower design that is compatible with both Intel and AMD platforms, which enhances its appeal to a wide range of builders. With a 100mm PWM fan and direct touch heatpipes, it promises improved cooling performance and efficient heat dissipation. The upgraded design also focuses on reducing noise levels during operation, ensuring a quieter computing experience.

Overview of the Thermalright Assassin King 120 SE White ARGB CPU Air Cooler

The Thermalright Assassin King 120 SE White ARGB CPU Air Cooler is priced at $19.82, approximately 32% more expensive than the ID-COOLING model. This cooler offers a larger design with five heatpipes and an ARGB fan, which not only provides effective cooling but also adds aesthetic value to a PC build. The fan operates quietly at a maximum noise level of 25.6 dB(A) and is designed to provide efficient airflow up to 66.17 CFM. This cooler’s versatility extends to its compatibility with multiple Intel and AMD sockets, making it a solid choice for users with different setups.

Cooling Performance

When it comes to cooling performance, the ID-COOLING SE-903-XT V2 features an upgraded heatsink design that enhances heat dissipation compared to its predecessor. It utilizes direct touch heatpipes to ensure superior thermal transfer, making it effective for both everyday tasks and gaming. On the other hand, the Thermalright Assassin King 120 SE is equipped with five heatpipes and utilizes AGHP III technology, which helps mitigate inverse gravity effects for consistent cooling performance. The larger 120mm fan on the Thermalright model also contributes to better airflow, which could be beneficial for high-performance systems.

Noise Levels

In terms of noise levels, the ID-COOLING SE-903-XT V2 is designed to operate quietly, with a focus on maintaining balanced noise levels during operation. While specific decibel ratings are not provided, the emphasis on low noise suggests that it is suitable for users who prioritize a quiet PC environment. The Thermalright Assassin King 120 SE, with its S-FDB bearings, also boasts low noise levels at a maximum of 25.6 dB(A). Therefore, both coolers cater to noise-sensitive users, but the Thermalright model has a specific noise rating that may appeal to those who are more particular about sound levels.

Installation and Compatibility

The ID-COOLING SE-903-XT V2 features an upgraded universal mounting bracket that simplifies installation on both Intel and AMD platforms. Its compact size ensures that it fits well in small and mid-size cases, making it ideal for ITX and mATX builds. Conversely, the Thermalright Assassin King 120 SE also provides a user-friendly installation process, thanks to its included mounting hardware for various CPU sockets. However, its larger dimensions may require more space within the case, which could be a consideration for users with limited room.

Aesthetic Appeal

Aesthetically, the ID-COOLING SE-903-XT V2 presents a refined and cohesive look with its sleek black finish, making it a versatile addition to any build. Its design is aimed at blending seamlessly with gaming, office, or home setups. In contrast, the Thermalright Assassin King 120 SE stands out with its White ARGB lighting, which enhances visual appeal and allows for customization in RGB setups. This could be a significant factor for users who prioritize aesthetics and want their cooling solution to complement their overall build.

Price Comparison

The ID-COOLING SE-903-XT V2 is priced at $14.99, while the Thermalright Assassin King 120 SE comes in at $19.82. This represents a price difference of about $4.83, making the ID-COOLING model approximately 24% cheaper than the Thermalright option. For budget-conscious consumers, this difference may sway purchasing decisions, especially if they are looking for effective cooling without breaking the bank.

Which should you buy?

Deciding between the ID-COOLING SE-903-XT V2 Black and the Thermalright Assassin King 120 SE White ARGB hinges on individual needs and preferences. For users seeking a budget-friendly and compact cooling solution, the ID-COOLING model provides excellent value with its efficient performance and low noise levels. However, for those who prefer enhanced cooling capabilities, aesthetic customization, and are willing to spend a bit more, the Thermalright Assassin King 120 SE is an excellent choice with its superior airflow and stylish ARGB features. Ultimately, both coolers have their strengths, making them suitable for different types of builds and user requirements.