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Thermalright Assassin X 120R SE V2 CPU Cooler, 4× vs Thermalright AXP90-X53 Full Cooper Low Profile CPU

Updated August 2026 — Thermalright Assassin X 120R SE V2 CPU Cooler, 4× leads on aesthetics and fan efficiency.

The Thermalright Assassin X 120R SE V2 offers better cooling performance at a lower price, while the AXP90-X53 excels in compact builds. Choose based on your specific needs.

Why Thermalright Assassin X 120R SE V2 CPU Cooler, 4× is better

Cooling Performance

Higher airflow and RPM

Price

Significantly cheaper

Compatibility

Supports more CPU sockets

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

Size

Low-profile design for compact builds

Noise Level

Quieter operation at higher RPM

Material

Full copper construction for better heat dissipation

Overall score

Thermalright Assassin X 120R SE V2 CPU Cooler, 4×
85
Thermalright AXP90-X53 Full Cooper Low Profile CPU
78

Specifications

SpecThermalright Assassin X 120R SE V2 CPU Cooler, 4×Thermalright AXP90-X53 Full Cooper Low Profile CPU
Fan Speed1550 RPM2700 RPM
Noise Level25.6 dB(A)22.4 dB(A)
Airflow66.17 CFM42.58 CFM
MaterialAluminumCopper
CompatibilityLGA1150/1700LGA1150/1700

Dimension comparison

Thermalright Assassin X 120R SE V2 CPU Cooler, 4×Thermalright AXP90-X53 Full Cooper Low Profile CPU

Overview of the Products

When choosing between the Thermalright Assassin X 120R SE V2 CPU Cooler and the Thermalright AXP90-X53 Full Cooper Low Profile CPU Cooler, it’s essential to consider their specifications and intended use cases. The Assassin X 120R SE V2 is priced at $16.59, making it a budget-friendly option, while the AXP90-X53 costs $35.90, reflecting its specialized low-profile design. Both coolers cater to different market segments, with one focusing on standard builds and the other tailored for compact setups.

Design and Build Quality

The design of the Thermalright Assassin X 120R SE V2 features a height of 148mm, with a robust aluminum heatsink and four 6mm heat pipes to enhance cooling efficiency. In contrast, the AXP90-X53 is a low-profile cooler that stands at just 53mm tall, making it ideal for ITX builds. The AXP90-X53 also boasts full copper construction, which enhances its heat dissipation capabilities. This difference in height and material composition makes each cooler suited for distinct case configurations, with the AXP90-X53 appealing to users with space constraints.

Cooling Performance

In terms of cooling performance, the Thermalright Assassin X 120R SE V2 offers a fan speed of up to 1550 RPM, achieving an airflow of 66.17 CFM with a noise level of 25.6 dB(A). This provides a solid cooling solution for standard-sized cases. On the other hand, the AXP90-X53, while compact, features a higher fan speed of 2700 RPM and an airflow of 42.58 CFM at a quieter noise level of 22.4 dB(A). Although the airflow is lower than the Assassin X 120R SE V2, the AXP90-X53's design is optimized for efficient heat transfer, especially critical in smaller builds.

Compatibility and Installation

Both coolers support a wide range of CPU sockets, including various Intel and AMD platforms. The Thermalright Assassin X 120R SE V2 is compatible with Intel sockets LGA1150, 1151, 1155, 1156, 1200, 1700, and AMD AM4/AM5. The AXP90-X53 supports similar Intel and AMD sockets but is designed specifically for compact ITX builds, making it easier to install in tight spaces. The installation complexities may vary, with the AXP90-X53 requiring attention to motherboard backplate conflicts, which could be a consideration for less experienced builders.

Noise Levels and Fan Technology

When it comes to noise levels, the Thermalright AXP90-X53 edges out the Assassin X 120R SE V2. While the Assassin X 120R SE V2 operates at a maximum noise level of 25.6 dB(A), the AXP90-X53 maintains a quieter operation at 22.4 dB(A) despite its higher fan speed. This makes the AXP90-X53 a more appealing choice for users prioritizing a quiet computing experience, especially in home theater or compact setups where noise can be more noticeable.

Price Point and Value

The Thermalright Assassin X 120R SE V2 is priced at $16.59, making it about 53% cheaper than the AXP90-X53, which retails for $35.90. This significant price difference could be a decisive factor for budget-conscious consumers or those looking to build a standard desktop setup without spending too much on cooling. However, the AXP90-X53's higher price may be justified by its specialized design and low-profile efficiency, particularly in compact builds.

User Experience and Reviews

While specific sales and bestseller ranks were not provided, user feedback often highlights the importance of performance and installation ease. The Thermalright Assassin X 120R SE V2 is generally praised for its cooling performance in mid-tower cases, while the AXP90-X53 is frequently recognized for its space-saving advantages in ITX setups. This reflects a clear user preference based on build requirements and cooling needs.

Which should you buy?

Ultimately, the choice between the Thermalright Assassin X 120R SE V2 and the AXP90-X53 hinges on your specific needs. If you are building a standard desktop and require efficient cooling at a lower price point, the Assassin X 120R SE V2 is an excellent choice. However, if you are constrained by space and need a low-profile cooler that still delivers good performance, the AXP90-X53 is worth the investment despite its higher cost.