vsversusfinder

Noctua NH-U9S chromax.Black, vs Thermalright AXP90 X47 Full Low Profile CPU Cooler,

Updated August 2026 — Noctua NH-U9S chromax.Black, leads on warranty and cooling perf.

The Noctua NH-U9S chromax.Black offers superior performance and build quality, making it the better choice for serious users. However, the Thermalright AXP90 X47 provides excellent value for budget-conscious buyers.

Why Noctua NH-U9S chromax.Black, is better

Performance

Noctua is known for superior cooling efficiency.

Warranty

Noctua offers a 6-year warranty.

Compatibility

Noctua supports a wider range of sockets.

Why Thermalright AXP90 X47 Full Low Profile CPU Cooler, is better

Price

Thermalright is significantly cheaper.

Size

Thermalright's low-profile design is ideal for compact builds.

Noise Level

Thermalright operates quietly at 22.4 dB(A).

Overall score

Noctua NH-U9S chromax.Black,
85
Thermalright AXP90 X47 Full Low Profile CPU Cooler,
70

Specifications

SpecNoctua NH-U9S chromax.Black,Thermalright AXP90 X47 Full Low Profile CPU Cooler,
Cooling TypeAirAir
Fan SpeedPWMPWM
Noise LevelLow22.4 dB(A)
MaterialAluminumCopper
Socket SupportWideNarrow

Dimension comparison

Noctua NH-U9S chromax.Black,Thermalright AXP90 X47 Full Low Profile CPU Cooler,

Overview of the Coolers

In the realm of CPU coolers, the Noctua NH-U9S chromax.Black and the Thermalright AXP90 X47 Full Low Profile CPU Cooler present two distinct options. The Noctua is priced at $74.95, while the Thermalright is considerably cheaper at $33.99, making it about 55% less expensive than its competitor. This price difference may attract users with tighter budgets, but the decision should also consider performance and compatibility factors.

Design and Size Comparison

The Noctua NH-U9S chromax.Black features a compact 92mm single-tower design, standing at 125mm in height, making it suitable for most tower cases without obstructing RAM slots or PCIe lanes. In contrast, the Thermalright AXP90 X47 boasts an ultra-compact low-profile design at just 47mm tall, ideal for small form factor builds. The significant height difference may influence your choice depending on the case size and layout. If you're working with an ITX case, the Thermalright’s low profile may be more appealing, while the Noctua’s larger size might offer better cooling performance.

Cooling Performance

When it comes to cooling efficiency, both coolers leverage advanced fan technology to maintain optimal temperatures. The Noctua NH-U9S is equipped with the renowned NF-A9 92mm fan, which is praised for its low noise levels and effective cooling performance under load. On the other hand, the Thermalright AXP90 X47 also features a 92mm PWM fan, designed to provide excellent heat dissipation with a noise level of only 22.4 dB(A). While the Noctua is recognized for its superior design and performance, the Thermalright's price point may entice those prioritizing cost over peak performance.

Compatibility and Installation

The Noctua NH-U9S chromax.Black offers extensive compatibility, supporting Intel LGA1851, LGA1700, LGA1200, LGA115x, and AMD AM5 & AM4 sockets. It includes a SecuFirm2 mounting system for a straightforward installation process. Conversely, the Thermalright AXP90 X47 is compatible with a slightly narrower range of sockets, specifically Intel LGA 1150/1151/1155/1156/1200/1700 and AMD AM4. While both coolers are designed for easy installation, the Noctua's broader compatibility makes it a more versatile option for users with diverse systems.

Build Quality and Durability

Noctua is renowned for its high-quality products, and the NH-U9S chromax.Black is no exception, backed by a 6-year manufacturer’s warranty. This commitment to quality ensures that users can trust the longevity and reliability of their cooler. On the other hand, the Thermalright AXP90 X47 utilizes a pure copper base for excellent heat conductivity, along with a plating anti-oxidation protective layer to prevent corrosion. While both brands exhibit solid build quality, Noctua's longer warranty might make it a more appealing choice for those seeking reassurance in their investment.

Noise Levels

Noise levels are an essential consideration for many users, particularly those with quiet computing needs. The Noctua NH-U9S is designed to operate whisper-quiet at idle thanks to its Low-Noise Adaptor, ensuring minimal distraction during operation. Meanwhile, the Thermalright AXP90 X47 maintains a low noise level of 22.4 dB(A) under normal operation. While both coolers are designed to be quiet, the Noctua's advanced features may provide a slight edge in silent performance, particularly for high-load scenarios.

Price Comparison

The price difference between the two coolers is significant, with the Noctua priced at $74.95 and the Thermalright at $33.99. This represents a staggering 55% savings if you opt for the Thermalright cooler. For budget-conscious buyers, this lower price may be very attractive, especially for those who may not need the advanced features of the Noctua. However, it’s essential to weigh the lower price against the potential for increased performance and longevity with the Noctua.

Which should you buy?

Choosing between the Noctua NH-U9S chromax.Black and the Thermalright AXP90 X47 ultimately depends on your specific needs and budget. If you are looking for a high-performance cooler with a solid reputation for durability and extensive compatibility, the Noctua is the superior choice despite its higher price. However, if you are on a tight budget or need a cooler for a compact build, the Thermalright offers excellent performance at a fraction of the cost. In summary, your decision should hinge on your priorities regarding performance, budget, and the specific requirements of your PC build.