Thermalright Assassin X120 Refined SE CPU Air vs Thermalright AXP90 X47 Black Low Profile CPU Cooler
Updated July 2026 — Thermalright Assassin X120 Refined SE CPU Air wins on weight and height, Thermalright AXP90 X47 Black Low Profile CPU Cooler wins on width.
The Thermalright Assassin X120 offers superior cooling performance and broader compatibility at a lower price, making it the better choice for most users. The AXP90 X47 is ideal for compact builds prioritizing quiet operation.
Why Thermalright Assassin X120 Refined SE CPU Air is better
Cooling Performance
Assassin X120 has higher airflow and RPM.
Price
Assassin X120 is cheaper by $4.49.
Compatibility
Assassin X120 supports more CPU sockets.
Why Thermalright AXP90 X47 Black Low Profile CPU Cooler is better
Noise Level
AXP90 X47 operates at a quieter maximum noise level.
Size
AXP90 X47 is more suitable for compact builds.
Build Quality
AXP90 X47 features black nickel plating for corrosion resistance.
Overall score
Specifications
| Spec | Thermalright Assassin X120 Refined SE CPU Air | Thermalright AXP90 X47 Black Low Profile CPU Cooler |
|---|---|---|
| Max RPM | 1550 | 0 |
| Max CFM | 66.17 | 0 |
| Noise Level | 25.6 dB(A) | 22.4 dB(A) |
| Socket Support | LGA 1150/1151/1155/1200/1700/1851, AM4/AM5 | LGA 115X/1200, AM4/AM5 |
| Material | Aluminum | Metal |
Dimension comparison
Overview of Thermalright CPU Coolers
When comparing the Thermalright Assassin X120 Refined SE CPU Air Cooler and the Thermalright AXP90 X47 Black Low Profile CPU Cooler, it's essential to recognize their unique strengths. The Assassin X120 is designed for those seeking robust cooling performance, while the AXP90 caters to users with space constraints. With prices at $17.90 and $22.39 respectively, the Assassin X120 is approximately 20% cheaper than the AXP90.
Design and Build Quality
The Thermalright Assassin X120 boasts a sturdy design with an aluminium heatsink cover and four heat pipes, ensuring effective heat dissipation. Measuring 125mm x 71mm x 148mm, it is suitable for medium-sized cases. In contrast, the AXP90 X47 is a low-profile cooler at just 47mm high, making it ideal for compact ITX builds. Its black nickel plating not only adds an aesthetic touch but also enhances its corrosion resistance. While both coolers are well-constructed, the choice comes down to your case size and aesthetic preference.
Cooling Performance
Cooling performance is a critical factor in CPU coolers, and both models excel in this area. The Assassin X120 features a TL-C12C PWM fan that can reach speeds of up to 1550 RPM, delivering a maximum airflow of 66.17 CFM with a noise level capped at 25.6 dB(A). On the other hand, the AXP90 X47 utilizes a 92mm TL-9015B slim PWM fan, operating at a quieter maximum noise level of 22.4 dB(A) but with potentially lower airflow due to its smaller size. Users seeking enhanced cooling might prefer the Assassin X120, while those prioritizing whisper-quiet operation may lean toward the AXP90.
Compatibility
Compatibility is another vital aspect when selecting a CPU cooler. The Assassin X120 supports a wide range of Intel and AMD sockets, including Intel LGA 1150/1151/1155/1200/1700/1851 and AMD AM4/AM5. This broad compatibility makes it a versatile choice for various builds. Meanwhile, the AXP90 X47 also supports multiple sockets, specifically Intel 115X/1200 and AMD AM4/AM5. While both coolers offer solid compatibility, the Assassin X120's broader range may appeal to users with diverse setups.
Noise Levels
When it comes to operational noise, the AXP90 X47 edges out the Assassin X120 with a lower maximum noise level of 22.4 dB(A). This quieter operation makes it an excellent choice for users who value a silent computing environment, particularly in compact builds where noise can be more pronounced. Conversely, the Assassin X120's noise level of 25.6 dB(A), while still reasonable, might be noticeable in quieter scenarios. If noise reduction is a primary concern, the AXP90 is the better option.
Price Comparison
The price difference between the two coolers is notable, with the Thermalright Assassin X120 priced at $17.90 and the AXP90 X47 at $22.39. This makes the AXP90 about 25% more expensive than the Assassin X120. For budget-conscious consumers, the Assassin X120 offers a compelling value without sacrificing essential performance features. The decision may hinge on whether the additional cost for the AXP90's low-profile design and quieter operation justifies the price difference for your specific needs.
Brand Reputation
Both products come from Thermalright, a brand with over 20 years of experience in the cooling market. Known for their quality and performance, Thermalright's reputation enhances the appeal of both the Assassin X120 and the AXP90. However, the choice between the two models ultimately comes down to individual requirements rather than brand preference, as both are backed by the trusted name of Thermalright.
Which should you buy?
Deciding between the Thermalright Assassin X120 Refined SE and the AXP90 X47 depends on your specific needs. If you require a cooler with superior performance and broader compatibility, the Assassin X120 is the clear winner at a more budget-friendly price of $17.90. However, for users with space constraints who prioritize quieter operation, the AXP90 X47, priced at $22.39, offers excellent low-profile cooling capabilities. Ultimately, your choice should reflect your PC build requirements and personal preferences for noise and cooling efficiency.

