Noctua NH-U9S chromax.Black, vs Thermalright AXP90 X36 Low Profile ITX CPU Cooler,
Updated August 2026 — Noctua NH-U9S chromax.Black, leads on warranty and cooling performa.
The Noctua NH-U9S chromax.Black offers superior performance and build quality, making it the better choice for high-end users. The Thermalright AXP90 X36 is a budget-friendly option for compact builds.
Why Noctua NH-U9S chromax.Black, is better
Performance
Superior cooling performance under load
Noise
Quieter operation at idle and under load
Compatibility
Wider compatibility with modern sockets
Why Thermalright AXP90 X36 Low Profile ITX CPU Cooler, is better
Price
Significantly cheaper option
Size
Ideal for compact ITX cases
Installation
Straightforward installation process
Overall score
Specifications
| Spec | Noctua NH-U9S chromax.Black, | Thermalright AXP90 X36 Low Profile ITX CPU Cooler, |
|---|---|---|
| Cooling Type | Air | Air |
| Fan Speed | PWM | PWM |
| Thermal Paste | Included | Not Included |
| Warranty | 6 years | 2 years |
| Material | Aluminum | Metal |
Dimension comparison
Overview of the Noctua NH-U9S chromax.Black and Thermalright AXP90 X36
The Noctua NH-U9S chromax.Black is a premium CPU cooler priced at $74.95, while the Thermalright AXP90 X36 offers a budget-friendly solution at $20.39. The significant price difference of approximately 267% highlights the distinct market segments these products cater to. While Noctua is known for its high-performance cooling solutions, Thermalright emphasizes compactness and affordability, appealing to users with space constraints or limited budgets.
Design and Build Quality
The Noctua NH-U9S chromax.Black showcases a robust design with a 92mm single-tower configuration that stands 125mm tall. Its all-black aesthetic enhances compatibility with various builds, making it a versatile choice for many users. In contrast, the Thermalright AXP90 X36 boasts a low-profile design with a total height of just 36mm, making it an ideal solution for compact ITX cases. Both coolers use quality materials, but the Noctua's award-winning design and proven performance give it a slight edge in overall build quality.
Cooling Performance
When it comes to cooling performance, the Noctua NH-U9S chromax.Black is equipped with the renowned NF-A9 92mm fan, which is celebrated for its low noise levels and effective cooling under load. This fan can automatically adjust its speed for optimal performance, making it suitable for both gaming and workstation setups. The Thermalright AXP90 X36, while offering decent cooling capabilities, features a slim PWM fan that operates at a maximum noise level of 22.4 DBA. The NH-U9S is likely to provide superior cooling for more demanding applications, making it a better choice for high-performance CPUs.
Compatibility
The Noctua NH-U9S chromax.Black is designed to be compatible with a wide range of Intel and AMD sockets, including LGA1851, LGA1700, LGA1200, and AM4/AM5. This extensive compatibility ensures that it can fit most modern systems without issues. On the other hand, the Thermalright AXP90 X36 also supports a variety of Intel and AMD sockets such as LGA1150, LGA1151, LGA1200, and AM4/AM5. While both coolers are versatile, the Noctua's broader compatibility may make it preferable for users with specific motherboard configurations.
Noise Levels
Noise levels are a crucial factor in CPU cooler selection, particularly for users who prioritize a quiet computing experience. The Noctua NH-U9S chromax.Black is designed to operate whisper-quiet at idle, ensuring minimal disruption during everyday tasks. The Low-Noise Adaptor allows for further noise reduction, which is a significant advantage for silent PC builds. Meanwhile, the Thermalright AXP90 X36 operates at a maximum noise level of 22.4 DBA. While this is relatively quiet, it may not match the nearly silent operation of the Noctua under load, especially in high-performance scenarios.
Installation Process
Installation ease is essential for many builders, and the Noctua NH-U9S chromax.Black comes with the SecuFirm2 mounting system, which simplifies the installation process across various platforms. It also includes high-end NT-H1 thermal paste, ensuring optimal thermal transfer. The Thermalright AXP90 X36 also features a straightforward installation process, utilizing an all-metal platform and backplate fastener. However, the Noctua's comprehensive installation kit and clear instructions may offer a more user-friendly experience, particularly for those new to PC building.
Price Comparison
The Noctua NH-U9S chromax.Black is priced at $74.95, reflecting its premium quality and performance. In contrast, the Thermalright AXP90 X36 is significantly more budget-friendly at $20.39, making it about 73% cheaper than the Noctua model. This price difference highlights the intended audience for each cooler: the Noctua targets users seeking high performance and reliability, while the Thermalright appeals to those looking for an economical solution without sacrificing too much on quality.
Which should you buy?
Choosing between the Noctua NH-U9S chromax.Black and the Thermalright AXP90 X36 ultimately comes down to your specific needs and budget. If you're looking for a high-performance cooler with excellent compatibility, low noise levels, and a robust design, the Noctua is the clear winner. However, if you're working with a tight budget or a compact case, the Thermalright AXP90 X36 is a solid choice that provides decent performance at a fraction of the price. Consider your priorities, and select the cooler that best fits your setup.

