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Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, vs Thermalright Peerless Assassin 120 SE CPU Cooler,

Updated August 2026 — Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, wins on size compatibili and noise level, Thermalright Peerless Assassin 120 SE CPU Cooler, wins on cooling performa and build quality.

The Thermalright AXP90-X53 is ideal for compact builds, while the Peerless Assassin 120 SE excels in performance. Choose based on your cooling needs and space constraints.

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

Price

AXP90-X53 is significantly cheaper at $19.39

Noise Level

AXP90-X53 operates quieter at 22.4dBA

Size

AXP90-X53 fits in tighter spaces with 53mm height

Why Thermalright Peerless Assassin 120 SE CPU Cooler, is better

Cooling Performance

Peerless Assassin has dual fans and higher airflow

Heat Pipes

Peerless Assassin has 6 heat pipes for better heat dissipation

Airflow

Peerless Assassin provides 66.17CFM airflow

Overall score

Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,
75
Thermalright Peerless Assassin 120 SE CPU Cooler,
85

Specifications

SpecThermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,Thermalright Peerless Assassin 120 SE CPU Cooler,
Price$19.39$49.99
Noise Level22.4dBA25.6dBA
Heat Pipes46
Fan Speed2700RPM1550RPM
CompatibilityIntel/AMDIntel/AMD

Dimension comparison

Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,Thermalright Peerless Assassin 120 SE CPU Cooler,

Overview of Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler

The Thermalright AXP90-X53 is an excellent choice for those seeking a compact cooling solution. Priced at $19.39, it stands out for its low profile design, measuring just 53mm in height. This cooler is particularly well-suited for small ITX motherboards and compact cases, making it a popular option for users looking to build a space-efficient system. The AXP90-X53 features a 92mm PWM fan that operates quietly at a noise level of 22.4dBA, ensuring it won’t disturb your computing experience even under load.

Overview of Thermalright Peerless Assassin 120 SE CPU Cooler

On the other hand, the Thermalright Peerless Assassin 120 SE is a more powerful option, available for $49.99. This cooler is designed for users seeking high performance, equipped with six heat pipes and dual 120mm PWM fans that can reach speeds of 1550RPM. It provides a significant airflow of 66.17CFM while maintaining a noise level of 25.6dBA. Its larger size, measuring 125mm x 135mm x 155mm, allows for better cooling capabilities, making it suitable for more demanding CPU setups.

Cooling Performance Comparison

In terms of cooling performance, the Thermalright Peerless Assassin 120 SE offers superior capabilities due to its dual fan design and six heat pipes. The dual fans provide a maximum airflow of 66.17CFM, which is about 55% higher than the AXP90-X53’s maximum airflow of 42.58CFM. This increased airflow can lead to better heat dissipation, especially during high-performance tasks like gaming or heavy multitasking. While the AXP90-X53 is adequate for lower TDP CPUs, the Peerless Assassin is designed for users who need robust cooling support.

Noise Levels

When it comes to noise levels, the Thermalright AXP90-X53 has a slight edge, operating at 22.4dBA compared to the Peerless Assassin’s 25.6dBA. This difference is crucial for users who prioritize a quiet working environment, such as in home theaters or office setups. The AXP90-X53’s quieter operation makes it a good choice for small form-factor builds where noise could be an issue. However, the slight increase in noise from the Peerless Assassin is often considered acceptable given its superior cooling performance.

Size and Compatibility

The AXP90-X53’s compact size of 94.5mm x 95mm x 53mm allows it to fit into tight spaces that larger coolers like the Peerless Assassin cannot accommodate. This is particularly important for users with small ITX cases. It supports a variety of CPU sockets, including Intel’s LGA 1700 and AMD’s AM4/AM5, making it versatile for different builds. In contrast, the Peerless Assassin, with dimensions of 125mm x 135mm x 155mm, requires adequate clearance in the case but also supports a wide range of CPU sockets, ensuring compatibility with most modern processors.

Ease of Installation

Both coolers are designed with user-friendly installation in mind, offering necessary mounting hardware for various CPU sockets. The AXP90-X53 includes metal mounting fasteners for easy setup, while the Peerless Assassin provides a more robust installation experience with its double tower design. However, users need to ensure their cases can accommodate the larger size of the Peerless Assassin, which may require additional attention during the installation process.

Brand Reputation

Thermalright has established itself as a reputable brand in the CPU cooler market over the last 20 years, known for its focus on research and development in computer cooling solutions. Both products carry the brand’s legacy, but the Peerless Assassin, being a newer model, reflects advancements in cooling technology. Users can trust Thermalright for quality and performance, regardless of which cooler they choose.

Price Comparison

The price difference between the two coolers is significant, with the AXP90-X53 priced at $19.39, making it about 61% cheaper than the Peerless Assassin at $49.99. This cost advantage makes the AXP90-X53 an attractive option for budget-conscious consumers or those with less demanding cooling needs. However, for users who require greater cooling performance and are willing to invest more, the Peerless Assassin offers features that justify its higher price.

Which should you buy?

Choosing between the Thermalright AXP90-X53 and the Peerless Assassin 120 SE largely depends on your specific needs. If you're building a compact system and require a cooler that is quiet and space-efficient, the AXP90-X53 is the better choice. However, if you need powerful cooling capabilities for high-performance CPUs and don’t mind the extra size and noise, the Peerless Assassin is worth the investment. Ultimately, your decision should be guided by the balance between your budget, space constraints, and cooling performance needs.