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Thermalright AXP90-X53 Full Cooper Low Profile CPU vs Thermalright Peerless Assassin 120 Digital ARGB

Updated August 2026 — Thermalright AXP90-X53 Full Cooper Low Profile CPU wins on size, Thermalright Peerless Assassin 120 Digital ARGB wins on aesthetics and cooling performa.

The Thermalright AXP90-X53 is ideal for compact builds with quieter operation, while the Peerless Assassin 120 excels in cooling performance and aesthetics.

Why Thermalright AXP90-X53 Full Cooper Low Profile CPU is better

Price

AXP90-X53 is cheaper at $35.90

Height

AXP90-X53 has a lower profile at 53mm

Noise

AXP90-X53 operates quieter at 22.4 dB(A)

Why Thermalright Peerless Assassin 120 Digital ARGB is better

Cooling

Peerless Assassin 120 has higher airflow at 88.89 CFM

Design

Peerless Assassin 120 features ARGB and digital display

Fan Setup

Peerless Assassin 120 has dual fans for better cooling

Overall score

Thermalright AXP90-X53 Full Cooper Low Profile CPU
75
Thermalright Peerless Assassin 120 Digital ARGB
85

Specifications

SpecThermalright AXP90-X53 Full Cooper Low Profile CPUThermalright Peerless Assassin 120 Digital ARGB
Max RPM27001850
MaterialCopperCopper
CompatibilityAM4/AM5, LGAAM4/AM5, LGA
Fan TypeSingleDual
InstallationEasyModerate

Dimension comparison

Thermalright AXP90-X53 Full Cooper Low Profile CPUThermalright Peerless Assassin 120 Digital ARGB

Overview of the Thermalright AXP90-X53 and Peerless Assassin 120

The Thermalright AXP90-X53 is priced at $35.90, making it about 17% cheaper than the Thermalright Peerless Assassin 120, which costs $45.90. Both coolers are crafted by Thermalright and cater to different user needs, focusing on compactness and performance, respectively. While the AXP90-X53 is designed specifically for ITX builds with its low-profile height of 53mm, the Peerless Assassin 120 offers superior cooling capabilities and aesthetics with its dual tower design and ARGB features.

Design and Build Quality

In terms of design, the AXP90-X53 features a compact structure ideal for small builds, measuring 94.5 x 95 x 53mm. It employs a refined copper construction for effective heat dissipation, focusing on minimizing wind damage. On the other hand, the Peerless Assassin 120 has a more substantial presence with dimensions of 138 x 125 x 162mm. Its dual tower and dual fan setup not only enhances cooling performance but also adds an appealing visual component thanks to its magnetic top cover and digital display. This difference in design reflects the distinct target users; the AXP90-X53 is for space-constrained setups, whereas the Peerless Assassin is aimed at those looking for both aesthetics and performance.

Cooling Performance

The cooling performance of these two products highlights a significant disparity. The AXP90-X53 utilizes a single 92mm fan that operates at a maximum speed of 2700 RPM and delivers an airflow of 42.58 CFM. This cooler is optimized for low-profile setups, making it suitable for compact cases. In contrast, the Peerless Assassin 120 boasts a dual-fan system with a combined airflow of 88.89 CFM and operates at a maximum speed of 1850 RPM. This setup allows it to provide superior cooling efficiency, especially for users requiring higher thermal dissipation. This difference in airflow and fan configuration makes the Peerless Assassin 120 a better choice for demanding systems.

Noise Levels

When it comes to noise levels, the AXP90-X53 operates at a maximum noise level of 22.4 dB(A), which is relatively quiet for a CPU cooler. This is particularly advantageous for HTPC users or those who prioritize a silent computing experience. Conversely, the Peerless Assassin 120 has a slightly noisier operation, with noise levels reaching up to 25.6 dB(A). While both coolers are relatively quiet, the AXP90-X53 has a slight edge in terms of silent operation, making it more suitable for environments where noise is a concern.

Compatibility

Compatibility is another essential factor to consider when choosing between these two coolers. The AXP90-X53 supports a wide range of CPU sockets, including AMD AM4/AM5 and Intel’s LGA 1700/1150/1151/1200. This makes it a versatile choice for compact builds. The Peerless Assassin 120 also offers broad compatibility with similar socket types, including AMD AM4/AM5 and Intel LGA 1700/1150/1151/1200. Both products come equipped with the necessary mounting hardware, ensuring that users can install them without hassle. However, the AXP90-X53's lower profile may allow for additional compatibility with other components in tighter builds.

Aesthetics and Additional Features

Aesthetics can play a significant role in a user's decision, especially for those who enjoy showcasing their builds. The AXP90-X53 has a more utilitarian design, focusing on function over form, while the Peerless Assassin 120 stands out with its sleek black finish, dual fans, and digital screen on the top cover. This digital display can enhance the overall look of a build, providing not just aesthetics but also functionality by displaying temperatures. Furthermore, the ARGB lighting on the Peerless Assassin adds a vibrant touch that can be synchronized with other RGB components, attracting users looking for a visually appealing setup.

Installation Process

Installation is straightforward for both coolers, but the AXP90-X53 does come with some specific installation notes to consider. If the backplane conflicts with motherboard components, users are advised to use the provided longer screws. This attention to detail in installation instructions reflects the AXP90-X53’s focus on versatility in cramped spaces. The Peerless Assassin 120, with its larger size and dual-fan design, may require more space and consideration during installation, but it is also designed for easy mounting on supported platforms. Overall, both coolers are designed with user installation in mind, though the AXP90-X53 may have a slight advantage in compact scenarios.

Which should you buy?

Choosing between the Thermalright AXP90-X53 and the Peerless Assassin 120 ultimately depends on your specific needs. If you're looking for a compact cooler suited for small form factor builds and quieter operation, the AXP90-X53 at $35.90 could be your best bet. However, if maximum cooling performance and aesthetics are your priorities, the Peerless Assassin 120, priced at $45.90, offers superior airflow, dual fans, and an attractive design. Each cooler excels in its niche, making your choice contingent upon your system requirements and personal preferences.