Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo vs Thermalright Peerless Assassin 120 CPU Air Cooler
Updated August 2026 — The Thermalright Peerless Assassin 120 offers superior cooling performance and aesthetic features, making it the better choice for high-performance builds. However, the AXP90 X53 is a solid option for compact setups at a lower price.
The Thermalright Peerless Assassin 120 offers superior cooling performance and aesthetic features, making it the better choice for high-performance builds. However, the AXP90 X53 is a solid option for compact setups at a lower price.
Why Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo is better
price
AXP90 X53 is cheaper at C$45.99
size
AXP90 X53 has a low profile of 53mm
weight
AXP90 X53 is lighter than Peerless Assassin 120
Why Thermalright Peerless Assassin 120 CPU Air Cooler is better
cooling
Peerless Assassin 120 has a TDP of 245W
fans
Peerless Assassin 120 includes two 120mm fans
RGB
Peerless Assassin 120 features ARGB lighting
Overall score
Specifications
| Spec | Thermalright AXP90 X53 Full Low Profile ITX CPU Cooler with 92mm Slim PWM Fan fo | Thermalright Peerless Assassin 120 CPU Air Cooler |
|---|---|---|
| Brand | Thermalright | Thermalright |
| Socket Support | LGA1700/1150/1151/1155/1156/1200, AM4/AM5 | 1150/1151/1155/1156/1200/1700/17XX/2066/2011/1851, AM4/AM5 |
| Fan Speed | 2700 RPM | 1500 RPM |
| Noise Level | N/A | ≤25.6 dB(A) |
| Cooling Type | Single Tower | Dual Tower |
Dimension comparison
Overview of CPU Coolers
When it comes to cooling solutions for your CPU, both the Thermalright AXP90 X53 and the Thermalright Peerless Assassin 120 stand out in their unique ways. The AXP90 X53 is designed as a low-profile ITX cooler, making it an excellent choice for compact builds. On the other hand, the Peerless Assassin 120 boasts a dual-tower design with improved heat dissipation capabilities, appealing to users looking for robust cooling performance. The AXP90 X53 is priced at C$45.99, while the Peerless Assassin 120 comes in at C$51.39, making the former more budget-friendly.
Design and Build Quality
The AXP90 X53 features a slim profile with an overall height of just 53mm, allowing it to fit into smaller cases without compromising on performance. Its design incorporates the AGHP technique with 4x6mm heat pipes, which enhances heat transfer efficiency. In contrast, the Peerless Assassin 120 showcases a more substantial build, measuring 125mm x 135mm x 157mm. This dual-tower cooler is constructed with aluminum and features a full electroplating reflow welding process, providing both durability and aesthetic appeal. The choice between a compact design and a larger, more robust cooler may depend on your specific PC build requirements.
Cooling Performance
In terms of cooling performance, the AXP90 X53 is equipped with a 92mm slim PWM fan capable of reaching a speed of 2700 RPM. This high-speed capability aims to ensure that your CPU remains cool, even under load. The Peerless Assassin 120, however, takes cooling to another level with its dual-tower design and two 120mm PWM fans, offering an airflow of 66.17 CFM and a maximum speed of 1500 RPM. With a thermal design power (TDP) rating of 245W, the Peerless Assassin 120 is better suited for high-performance CPUs. Thus, if you are looking for maximum cooling efficiency, the Peerless Assassin 120 is the superior choice.
Compatibility
Both coolers offer broad compatibility with various CPU sockets, making them versatile options for different builds. The AXP90 X53 supports Intel LGA1700/1150/1151/1155/1156/1200 and AMD AM4/AM5 sockets. The Peerless Assassin 120 covers a wider range, supporting Intel sockets, including 1150/1151/1155/1156/1200/1700/17XX/2066/2011/1851, as well as AMD AM4 and AM5. This extensive compatibility may make the Peerless Assassin 120 a more attractive option for users with diverse CPU setups.
Noise Levels
Noise levels are a critical factor when choosing a CPU cooler, especially for those seeking a quieter computing experience. The AXP90 X53 utilizes STABLY-FDB V2 bearings that enhance fan stability and reduce noise, though specific decibel levels are not provided. The Peerless Assassin 120 claims a maximum noise level of 25.6 dB(A), which is relatively quiet given its cooling capabilities. If noise reduction is a priority, the Peerless Assassin 120 has the advantage of specified noise levels, allowing for a more informed choice.
Aesthetics and RGB Features
For those who appreciate aesthetics, the Peerless Assassin 120 comes with colourful ARGB light effects, adding a visually appealing element to your build. The high-brightness LED fan blades create a soft and attractive lighting effect that can be controlled via the motherboard for synchronisation. In contrast, the AXP90 X53 focuses more on functionality and does not feature any RGB lighting. If aesthetic appeal is a significant factor in your decision, the Peerless Assassin 120’s RGB features may sway your choice.
Installation Process
The installation of both coolers is designed to be user-friendly, but they have different requirements. The AXP90 X53 includes long screws for installation in cases where the backplane conflicts with components on the motherboard. Additionally, it provides guidance for installing on non-removable bottom metal backplates for AM4/AM5 sockets. The Peerless Assassin 120 also includes metal fasteners for easy installation across various CPU sockets. While both coolers are relatively straightforward to install, the AXP90 X53 may require more attention to detail during setup.
Which should you buy?
Choosing between the Thermalright AXP90 X53 and the Thermalright Peerless Assassin 120 ultimately depends on your specific needs. If you have a compact build and are looking for an affordable cooling solution, the AXP90 X53 at C$45.99 is a solid choice with its slim profile and decent cooling performance. However, if you require superior cooling capabilities for high-performance CPUs and appreciate aesthetic features like RGB lighting, the Peerless Assassin 120 at C$51.39 is worth the investment. Both coolers excel in their respective categories, so your decision should align with your performance needs and build preferences.
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