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Delta A40 ARGB CPU Cooler vs Thermalright Assassin X 120 SE CPU Air Cooler

Updated August 2026The Delta A40 ARGB CPU Cooler excels in thermal capacity and aesthetic appeal, while the Thermalright Assassin X 120 SE offers quieter operation and a reputable brand. Choose based on your priorities.

The Delta A40 ARGB CPU Cooler excels in thermal capacity and aesthetic appeal, while the Thermalright Assassin X 120 SE offers quieter operation and a reputable brand. Choose based on your priorities.

Why Delta A40 ARGB CPU Cooler is better

higher thermal capacity

Delta A40 supports up to 220W TDP

customizable lighting

Delta A40 features ARGB lighting effects

lower price

Delta A40 priced at C$19.29

Why Thermalright Assassin X 120 SE CPU Air Cooler is better

quieter operation

Assassin X has a max noise level of 25.6 dB(A)

brand reputation

Thermalright has over 20 years of experience

efficient fan design

Assassin X fan operates at 1550 RPM with 66.17 CFM

Overall score

Delta A40 ARGB CPU Cooler
85
Thermalright Assassin X 120 SE CPU Air Cooler
78

Specifications

SpecDelta A40 ARGB CPU CoolerThermalright Assassin X 120 SE CPU Air Cooler
PriceC$19.29C$25.59
Max Noise29 dB(A)25.6 dB(A)
Airflow73 CFM66.17 CFM
Fan Speed500-2000 RPM1550 RPM
CompatibilityIntel & AMDIntel & AMD

Dimension comparison

Delta A40 ARGB CPU CoolerThermalright Assassin X 120 SE CPU Air Cooler

Overview of the Delta A40 ARGB CPU Cooler

The Delta A40 ARGB CPU Cooler is designed for high performance and aesthetic appeal, priced at C$19.29. This cooler can handle power dissipation of up to 220W, making it suitable for demanding gaming and creative tasks. Its advanced design includes a family fin array that not only enhances heat dissipation but also minimizes noise, providing a balanced performance. The customizable ARGB lighting allows users to personalize their setup, making it an attractive option for those who value both performance and aesthetics in their cooling solution.

Overview of the Thermalright Assassin X 120 SE CPU Air Cooler

The Thermalright Assassin X 120 SE CPU Air Cooler is priced at C$25.59 and is engineered with a focus on effective cooling and quiet operation. It supports a thermal design power (TDP) of 125 to 225W, which makes it versatile for various CPU demands. The cooler boasts a PWM fan that operates at a maximum speed of 1550 RPM, generating an airflow of 66.17 CFM while maintaining a noise level of only 25.6 dB(A). This balance of efficiency and quietness makes it an appealing choice for users looking for reliable cooling without excessive noise.

Performance Comparison

In terms of performance, the Delta A40 offers a higher power dissipation capability of 220W compared to the 225W TDP of the Thermalright Assassin X 120 SE. However, the Assassin X has a slightly lower noise level of 25.6 dB(A) compared to the Delta A40’s maximum noise level of 29 dB(A). While both coolers are designed to handle significant heat loads, the Delta A40 has the edge in maximum thermal capacity, which may appeal to users with high-performance CPUs. The choice between them may depend on whether the user prioritizes absolute cooling power or quieter operation.

Noise Levels and Cooling Efficiency

When it comes to noise levels, the Thermalright Assassin X 120 SE stands out with a maximum noise level of 25.6 dB(A), making it a quieter option compared to the Delta A40, which can reach up to 29 dB(A). This difference in noise output can be significant for users who are sensitive to sound, particularly in quieter environments. Both coolers utilize advanced fan designs to enhance cooling efficiency, but the Assassin X’s lower noise level may provide a more comfortable user experience during extended gaming or work sessions.

Aesthetic and Design Features

The Delta A40 ARGB CPU Cooler is particularly notable for its visually appealing design, featuring customizable ARGB lighting effects that can be controlled through compatible software. Its circular elements and mirror-like top add a modern flair to any build. In contrast, the Thermalright Assassin X 120 SE, while not as visually striking, prioritizes functional design with its effective heat pipe system and robust build quality. Users who value aesthetics alongside performance may find the Delta A40 more appealing, while those focused solely on functionality may prefer the practical design of the Assassin X.

Installation and Compatibility

Both the Delta A40 and the Thermalright Assassin X 120 SE are designed for easy installation on popular CPU platforms. The Delta A40 features all-metal mounting hardware that supports both Intel and AMD systems, including sockets like AM4 and LGA 1700. The Thermalright Assassin X also offers compatibility with a range of Intel and AMD sockets, including AM4 and LGA 1700, with appropriate mounting plates included. The ease of installation for both coolers makes them suitable for users who may not have extensive experience with PC builds, ensuring a hassle-free setup.

Brand Reputation and Reliability

Ocypus, the brand behind the Delta A40, is relatively less known compared to Thermalright, which has over 20 years of experience in the cooling market. Thermalright has established a solid reputation for reliability and performance among PC enthusiasts. Users may feel more comfortable choosing Thermalright due to its long-standing presence and proven track record in the industry, despite the Delta A40’s appealing features and lower price point.

Which should you buy?

Choosing between the Delta A40 ARGB CPU Cooler and the Thermalright Assassin X 120 SE CPU Air Cooler ultimately depends on your specific needs and preferences. If you prioritise aesthetic appeal and higher thermal capacity, the Delta A40 at C$19.29 may be the better choice. However, if you prefer a quieter operation with a reputable brand and a price of C$25.59, the Thermalright Assassin X 120 SE could be more suitable. Both coolers offer excellent performance, but your decision should be guided by your priorities in terms of noise level, cooling efficiency, or design.

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Delta A40 ARGB CPU Cooler vs Thermalright Assassin X 120 SE CPU Air Cooler | versusfinder