Noctua NH-U9S vs Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler,
Updated August 2026 — Noctua NH-U9S leads on durability and cooling.
The Noctua NH-U9S offers superior performance and quieter operation, making it the better choice for high-demand users. The Thermalright AXP90-X53 is a solid budget option for compact builds.
Why Noctua NH-U9S is better
Performance
NH-U9S provides better cooling efficiency.
Noise Level
NH-U9S operates quieter than AXP90-X53.
Build Quality
NH-U9S includes high-end thermal paste.
Why Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, is better
Price
AXP90-X53 is significantly cheaper.
Height
AXP90-X53 is lower profile at 53mm.
Compatibility
AXP90-X53 is designed for tight spaces.
Overall score
Specifications
| Spec | Noctua NH-U9S | Thermalright AXP90-X53 White Low Profile ITX CPU Air Cooler, |
|---|---|---|
| Fan Speed | PWM | 2700 RPM |
| Noise Level | Low | 22.4 dBA |
| Thermal Paste | NT-H1 | Included |
| Socket Compatibility | Intel/AMD | Intel/AMD |
| Cooling Type | Air | Air |
Dimension comparison
Overview of the Noctua NH-U9S and Thermalright AXP90-X53
The Noctua NH-U9S is a premium CPU cooler priced at $69.95, while the Thermalright AXP90-X53 is a budget-friendly option available for $19.39. This significant price difference of about 72% makes it essential to examine the features and performance of both coolers to determine which is more suitable for your needs.
The Noctua NH-U9S is renowned for its compact design and quiet operation, making it ideal for small form factor builds. On the other hand, the Thermalright AXP90-X53 is designed specifically for low-profile applications, providing effective cooling in tight spaces.
Design and Aesthetics
The Noctua NH-U9S features a compact single-tower design with a height of only 125mm, allowing for excellent compatibility with various cases, RAM, and PCIe slots. Its brown color scheme is both distinctive and aesthetically pleasing, appealing to users who appreciate a unique look.
Conversely, the Thermalright AXP90-X53 has a low-profile height of just 53mm, making it an excellent choice for smaller ITX chassis. Its sleek white finish also caters to modern build aesthetics, particularly for users looking for a clean and minimalist appearance.
Cooling Performance
Cooling performance is a critical aspect when choosing a CPU cooler. The Noctua NH-U9S utilizes a highly optimized NF-A9 92mm fan, designed to provide strong cooling performance while maintaining a low noise level. Its efficient design ensures that it does not overhang RAM or PCIe slots, which is a significant advantage for high-performance builds.
In comparison, the Thermalright AXP90-X53 is equipped with a 92mm PWM fan that operates at a maximum speed of 2700 RPM, offering an impressive air volume of 42.58 CFM. This cooler is designed to handle a TDP of up to 150W, making it suitable for various CPU models. Both coolers deliver effective cooling, but the NH-U9S may provide a more balanced performance for users with higher demands.
Noise Levels
When it comes to noise levels, the Noctua NH-U9S is designed for ultra-quiet operation, incorporating a Low-Noise Adaptor for automatic speed control. This makes it an excellent choice for users who prioritize a quiet computing environment, especially in home theater PC setups or quiet workspaces.
The Thermalright AXP90-X53 operates with a maximum noise level of 22.4 dBA, which is relatively quiet but may not match the NH-U9S in terms of silent operation. If noise is a primary concern, the Noctua cooler likely holds the advantage, especially during intensive tasks.
Installation and Compatibility
The Noctua NH-U9S comes with a SecuFirm2 mounting system that ensures easy installation across a range of Intel and AMD sockets, including LGA1851, LGA1700, and AM5/AM4. This versatility makes it a practical choice for users who may upgrade their systems in the future.
On the other hand, the Thermalright AXP90-X53 also boasts broad compatibility with various CPU sockets, including Intel LGA1700 and AMD AM4/AM5. However, it requires the use of the original motherboard's backplate for AMD installations. Both coolers cater well to their respective platforms, but the NH-U9S may offer a more straightforward setup experience.
Thermal Paste and Accessories
The Noctua NH-U9S includes high-end NT-H1 thermal paste, ensuring optimal thermal conductivity and cooling performance right out of the box. This attention to detail enhances the overall value of the cooler, especially for users who may not have high-quality thermal paste on hand.
In contrast, the Thermalright AXP90-X53 comes with its own heat transfer paste, designed to improve heat transfer efficiency. While both coolers provide adequate thermal paste, the inclusion of Noctua's NT-H1 could be seen as a premium feature that adds to the NH-U9S's appeal.
Price Comparison
The Noctua NH-U9S is priced at $69.95, while the Thermalright AXP90-X53 is significantly more affordable at $19.39. This price difference of about 72% may make the AXP90-X53 more attractive to budget-conscious consumers, especially those building compact systems. However, the NH-U9S's premium features and performance may justify its higher price for users looking for the best cooling solution available.
Which should you buy?
Choosing between the Noctua NH-U9S and the Thermalright AXP90-X53 largely depends on your specific needs and budget. If you prioritize premium performance, low noise levels, and superior build quality, the NH-U9S is an excellent investment. However, if you are looking for a budget-friendly cooler that still offers solid performance in a low-profile design, the AXP90-X53 is a commendable choice. Ultimately, both coolers serve their intended markets well, catering to different segments of the CPU cooler landscape.