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Thermalright Assassin X120 Refined SE CPU Air vs Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,

Updated July 2026 — Thermalright Assassin X120 Refined SE CPU Air wins on weight and height, Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, wins on width.

The Thermalright Assassin X120 offers superior cooling performance, while the AXP90-X53 excels in compact design and quiet operation. Choose based on your specific needs.

Why Thermalright Assassin X120 Refined SE CPU Air is better

Cooling Performance

Assassin X120 has higher airflow at 66.17 CFM.

Height

Assassin X120 is suitable for medium-sized cases.

Price

Assassin X120 is cheaper at $17.90.

Why Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, is better

Noise Level

AXP90-X53 operates quieter at 22.4 dB(A).

Compact Design

AXP90-X53 is only 53mm tall, ideal for small builds.

Aesthetic Appeal

AXP90-X53 has a modern white finish.

Overall score

Thermalright Assassin X120 Refined SE CPU Air
85
Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,
77

Specifications

SpecThermalright Assassin X120 Refined SE CPU AirThermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,
Max RPM15502700
Noise Level25.6 dB(A)22.4 dB(A)
Socket SupportIntel 1150/1151/1155/1200, AMD AM4/AM5Intel LGA 1700/1851/1150/1151/1155/1156/1200, AMD AM4/AM5
Cooling TechnologyAGHPAGHP 3rd Gen
MaterialAluminumAluminum/Copper

Dimension comparison

Thermalright Assassin X120 Refined SE CPU AirThermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,

Overview of Thermalright CPU Coolers

When it comes to CPU coolers, the Thermalright brand stands out for its commitment to performance and innovative design. In this comparison, we will look at two of their popular models: the Thermalright Assassin X120 Refined SE and the Thermalright AXP90-X53 White Low Profile. The Assassin X120 is currently priced at $17.90, while the AXP90-X53 comes in at $19.39, making it about 8% more expensive. Each cooler has unique features tailored for different user needs and setups.

Design and Build Quality

The design of the Thermalright Assassin X120 Refined SE is robust, featuring an aluminum heatsink cover and four heat pipes that utilize Advanced Gravity Heat Pipe (AGHP) technology. This cooler measures 125mm in length and stands at 148mm high, making it suitable for medium-sized cases. In contrast, the AXP90-X53 is designed for compact builds, measuring only 53mm in height. Its white finish and slim profile make it aesthetically pleasing for small ITX cases. Both coolers are built with durable materials, but the AXP90-X53's smaller dimensions cater specifically to tight spaces, while the Assassin X120 is better suited for standard setups.

Cooling Performance

In terms of cooling performance, the Thermalright Assassin X120 Refined SE provides airflow of 66.17 CFM at a noise level of 25.6 dB(A), making it an efficient option for high-performance CPUs. The AXP90-X53, while smaller, features a 92mm fan that operates at a maximum speed of 2700 RPM, delivering airflow of 42.58 CFM with a notably quieter noise level of just 22.4 dB(A). This means that while the Assassin X120 might push more air, the AXP90-X53 excels in silent operation, making it ideal for users who prioritize a quiet computing environment.

Compatibility

Both coolers are compatible with a wide range of CPU sockets. The Thermalright Assassin X120 supports Intel sockets including 1150, 1151, 1155, 1200, and AMD AM4/AM5, making it versatile for various builds. Similarly, the AXP90-X53 is compatible with Intel's LGA 1700/1851/1150/1151/1155/1156/1200 and AMD AM4/AM5 sockets. However, the AXP90-X53's compact size makes it particularly suitable for small form factor (SFF) builds where space is a constraint, allowing users to avoid memory clearance issues that larger coolers might present.

Installation Process

The installation process for both coolers is designed to be user-friendly. The Thermalright Assassin X120 comes equipped with metal fasteners for both Intel and AMD platforms, ensuring a secure fit. The AXP90-X53 also provides corresponding metal mounting fasteners for various CPU platforms and includes a note about using the motherboard's backplate for AMD installations. While both coolers are manageable for DIY enthusiasts, the AXP90-X53 may require a bit more attention to detail due to its compact nature.

Aesthetic Appeal

Aesthetics can be an important factor for many builders. The Thermalright Assassin X120 Refined SE features a classic design with an aluminum finish that can blend well with most setups. On the other hand, the AXP90-X53's white color and sleek profile cater to users looking for a modern and clean look, particularly in custom builds that emphasize minimalism. The visual difference may sway buyers who prioritize aesthetics alongside performance.

Noise Levels

Noise output is a critical consideration for many PC users. The Thermalright Assassin X120 Refined SE operates at a maximum noise level of 25.6 dB(A), which is relatively quiet but not as silent as the AXP90-X53. The AXP90-X53 operates at only 22.4 dB(A), making it a quieter option for those who want a more serene computing experience. If noise reduction is a primary goal, the AXP90-X53 could be the better choice, as it maintains effective cooling while operating more quietly.

Price Comparison

The Thermalright Assassin X120 Refined SE is priced at $17.90, offering a cost-effective solution for users seeking robust cooling performance. In comparison, the AXP90-X53 is available for $19.39, making it about 8% more expensive. While the price difference is slight, it may be a consideration for budget-conscious buyers. However, the added benefits of lower noise levels and compact design in the AXP90-X53 could justify the higher price for some users.

Which should you buy?

Deciding between the Thermalright Assassin X120 Refined SE and the AXP90-X53 ultimately comes down to your specific needs. If you require a powerful cooler for a standard-sized case and don't mind a bit more noise, the Assassin X120 is a solid option at a lower price point. Conversely, if you're building a compact system and prioritize silent operation, the AXP90-X53 is worth the slightly higher investment. Both coolers offer excellent compatibility and performance, but your choice will depend on whether you lean more towards performance or quiet operation in a compact design.