Thermalright Assassin X 120R SE V2 CPU Cooler, 4× vs Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,
Updated August 2026 — Thermalright Assassin X 120R SE V2 CPU Cooler, 4× wins on aesthetics and cooling perf, Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, wins on size flexibility and noise level.
The Thermalright Assassin X 120R SE V2 offers better cooling performance and RGB aesthetics, while the AXP90-X53 excels in compactness and quiet operation.
Why Thermalright Assassin X 120R SE V2 CPU Cooler, 4× is better
Cooling Performance
Higher airflow of 66.17 CFM
Height
Compatible with medium-sized cases
Aesthetics
RGB lighting for customization
Why Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, is better
Noise Level
Quieter operation at 22.4 dB(A)
Size
Ideal for compact ITX builds
Installation
Utilizes original motherboard backplate
Overall score
Specifications
| Spec | Thermalright Assassin X 120R SE V2 CPU Cooler, 4× | Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, |
|---|---|---|
| RPM | 1550 | 2700 |
| Noise Level | 25.6 dB(A) | 22.4 dB(A) |
| Heat Pipes | 4x6mm | 4x6mm |
| Compatibility | Intel/AMD | Intel/AMD |
| Material | Aluminum/Copper | Aluminum/Copper |
Dimension comparison
Overview
In the world of CPU coolers, the Thermalright Assassin X 120R SE V2 and the Thermalright AXP90-X53 White Low Profile both offer unique features tailored for different user needs. The Assassin X is priced at $16.59, while the AXP90-X53 comes in at $19.39, making the former about 17% cheaper. This price difference reflects their distinct designs and intended use cases.
Design and Size
The design of a CPU cooler can significantly impact its compatibility with various builds. The Thermalright Assassin X 120R SE V2 stands at 148mm tall, allowing it to fit in medium-sized cases, whereas the AXP90-X53 is notably smaller with a height of just 53mm, making it ideal for compact ITX builds. This low profile of the AXP90-X53 allows it to be easily integrated into tight spaces without obstructing memory slots. Therefore, if you are working with a small form factor chassis, the AXP90-X53 is a more suitable choice.
Cooling Performance
When it comes to cooling performance, both coolers utilize advanced technology to maintain optimal CPU temperatures. The Assassin X features four 6mm heat pipes combined with a 1550RPM fan capable of producing an airflow of 66.17 CFM, which is beneficial for larger builds. In contrast, the AXP90-X53 also employs four 6mm heat pipes but utilizes a 92mm fan that operates at a higher speed of 2700RPM, delivering a maximum airflow of 42.58 CFM. While the AXP90-X53 operates at a higher RPM, its lower airflow indicates that it may excel in quieter operations rather than sheer volume, making it ideal for users who prioritize silence.
Noise Levels
Noise levels are a crucial aspect to consider for any CPU cooler. The Thermalright Assassin X 120R SE V2 operates at a noise level of 25.6 dB(A), which is relatively quiet for a cooler of its size and performance. The AXP90-X53, however, is even quieter, with a noise rating of just 22.4 dB(A). This makes the AXP90-X53 an excellent option for those building a silent PC, as it provides effective cooling without generating excessive noise. Users who are sensitive to sound will likely favor the AXP90-X53 for its lower operational noise.
Compatibility
Both coolers offer broad compatibility with various CPU sockets, making them versatile choices for different setups. The Assassin X supports Intel sockets such as LGA1150, LGA1151, LGA1200, and AMD sockets including AM4 and AM5. Similarly, the AXP90-X53 is compatible with a range of Intel and AMD sockets, including LGA1700 and AM4/AM5. However, the AXP90-X53’s low profile makes it particularly well-suited for small ITX motherboards, while the Assassin X is more adaptable for larger cases. Users with specific motherboard requirements should consider the cooler that best fits their build dimensions.
Installation Process
The installation process can vary between CPU coolers, and ease of installation is a significant factor for many builders. The Thermalright Assassin X 120R SE V2 comes with metal fasteners for both Intel and AMD platforms, offering a straightforward installation experience. It includes a helpful installation video or instructions, ensuring users can get set up without hassle. The AXP90-X53 also provides installation support and utilizes the original motherboard backplate for AMD setups, which could simplify the process for those familiar with their motherboard configurations. Both coolers prioritize user-friendliness, but the specific ease will depend on the user's familiarity with their build.
Aesthetics
Aesthetics may play a role in your decision, especially if you have a clear case or are building a PC with a specific theme. The Thermalright Assassin X 120R SE V2 features RGB lighting, which can add a vibrant touch to your setup. This is particularly appealing for gamers and modders who want their builds to stand out. In contrast, the AXP90-X53 comes in a sleek white design, making it an excellent choice for clean and minimalist builds. The choice here depends on personal preference and whether you value customizable lighting or a streamlined look.
Which should you buy?
Choosing between the Thermalright Assassin X 120R SE V2 and the Thermalright AXP90-X53 ultimately depends on your specific needs and preferences. If you're looking for a more budget-friendly option that fits mid-sized cases and provides strong cooling performance with RGB aesthetics, the Assassin X is the way to go at $16.59. On the other hand, if you require a compact cooler for an ITX build and prefer a quieter operation with a stylish white finish, the AXP90-X53, priced at $19.39, is the better choice. Each cooler excels in its niche, making the decision largely dependent on your particular build requirements.

