Noctua NH-U9S vs Thermalright AXP90 X47 Full Low Profile CPU Cooler

Overview of the Noctua NH-U9S

The Noctua NH-U9S is a compact single-tower CPU cooler designed to provide strong cooling performance while maintaining excellent compatibility with a range of cases and components. Priced at C$74.95, it is a premium option compared to its competitor. The cooler stands at only 125mm tall, making it an ideal choice for HTPCs, ITX, and small form factor builds, as it does not overhang RAM or PCIe slots on most modern motherboards. This design allows for greater flexibility in component selection and ensures that you can use high-profile memory modules without interference.

The NH-U9S features a highly optimised NF-A9 92mm fan that supports PWM and comes with a Low-Noise Adaptor. This allows for automatic speed control, ensuring quiet operation while maintaining effective cooling performance. Additionally, it includes high-end NT-H1 thermal paste and a user-friendly SecuFirm2 mounting system, compatible with a variety of Intel and AMD CPU sockets. With a renowned reputation for quality, Noctua backs this cooler with a six-year manufacturer's warranty.

Overview of the Thermalright AXP90 X47

The Thermalright AXP90 X47 Full Low Profile CPU Cooler is an affordable alternative priced at C$43.39. Its standout feature is its low profile height of just 47mm, making it exceptionally suitable for compact builds such as HTPCs and ITX setups. Unlike the Noctua model, which stands at 125mm, the AXP90 X47 offers a solution for users who are particularly constrained for space, particularly in small cases where cooler height can be a limiting factor.

Equipped with AGHP technology, the cooler features four 6mm heat pipes that enhance its cooling efficiency by addressing the inverse gravity effect, particularly in vertical orientations. The integrated 92mm PWM fan operates quietly, providing automatic temperature control. The AXP90 X47 supports a wide range of CPU sockets, including both Intel and AMD platforms, and comes with all necessary mounting hardware for easy installation. The cooler's pure copper construction contributes to its durability and oxidation resistance, further enhancing its value proposition.

Cooling Performance Comparison

When it comes to cooling performance, both the Noctua NH-U9S and the Thermalright AXP90 X47 are designed to efficiently manage thermal loads in compact systems, but they employ different technologies. The NH-U9S, with its optimised NF-A9 92mm fan, offers a proven track record of effective cooling in small form factor builds. Its design ensures that it maintains low noise levels while delivering solid thermal performance across a range of workloads.

Conversely, the AXP90 X47 leverages its AGHP technology, which enables better heat transfer and cooling efficiency by utilising a secondary welding process for its heat pipes and fins. While specific performance metrics in terms of cooling capacity are not provided, the AXP90 X47's design suggests that it is capable of effectively managing heat in constrained environments, achieving a balance between size and cooling efficiency. Users may find that the Noctua's established reputation translates to slightly better thermal performance under prolonged loads, while the AXP90 is suitable for users prioritising compactness and budget.

Noise Levels and Operation

Noise levels are a critical consideration for many users, especially those building systems for home theatres or quiet environments. The Noctua NH-U9S is engineered for ultra-quiet operation, thanks to its PWM fan and Low-Noise Adaptor, which allows for automatic speed adjustments based on thermal demand. This results in an extremely quiet experience, making it a favourite among users who prioritise a silent operation.

On the other hand, the Thermalright AXP90 X47 also offers a quiet operation with a maximum noise level of 22.4 dB(A). Although this is commendable for a cooler of its size, the NH-U9S's reputation for quiet performance may still give it an edge for users who need near-silent cooling. Both coolers strive for quiet operation, but the Noctua's design may appeal more to audiophiles and users sensitive to noise levels.

Compatibility and Installation

Compatibility is a key factor when choosing a CPU cooler, and both the Noctua NH-U9S and Thermalright AXP90 X47 excel in this area. The NH-U9S supports a wide variety of Intel and AMD sockets, including Intel LGA1851, LGA1700, LGA1200, LGA115x, and AMD AM5 & AM4. Its SecuFirm2 mounting system simplifies installation, ensuring that users can set it up quickly and efficiently.

Similarly, the AXP90 X47 supports multiple CPU sockets, including Intel LGA1700/1150/1151/1155/1156/1200 and AMD AM4/AM5. It includes all necessary mounting hardware and is accompanied by a manual or installation video, making it accessible for users of all experience levels. Both coolers are designed for easy installation, but the NH-U9S's more established mounting system may provide slightly easier handling for users with less experience.

Build Quality and Aesthetics

Build quality significantly influences a cooler's longevity and performance, and both the Noctua NH-U9S and Thermalright AXP90 X47 are built with quality materials. Noctua is renowned for its exceptional quality control and attention to detail, evident in the NH-U9S's solid construction and materials. The cooler is backed by a six-year warranty, offering peace of mind regarding its durability.

The Thermalright AXP90 X47, constructed of pure copper, also boasts impressive build quality, enhancing its oxidation resistance. While it may not carry the same brand prestige as Noctua, Thermalright has established itself as a reliable performer in the market. In terms of aesthetics, the NH-U9S features a sleek, professional design, while the AXP90 X47 presents a more utilitarian look. Users who appreciate aesthetics may lean towards the NH-U9S, while those prioritising functionality might prefer the AXP90 X47.

Price Consideration

Price is often a decisive factor when choosing between CPU coolers. The Noctua NH-U9S retails for C$74.95, positioning it as a premium product with a corresponding level of performance and build quality. This price reflects its reputation and reliability in the market, making it a worthwhile investment for users seeking top-tier cooling.

In contrast, the Thermalright AXP90 X47 is significantly more affordable, priced at C$43.39. This lower price makes it an attractive option for budget-conscious users who still require effective cooling in compact builds. While the performance might not reach the same heights as the NH-U9S, the AXP90 X47 offers a solid value proposition for those prioritising cost over brand prestige and ultimate performance.

Which should you buy?

Choosing between the Noctua NH-U9S and the Thermalright AXP90 X47 ultimately comes down to your specific needs and budget. If you are looking for a high-performance cooler with a proven track record, exceptional build quality, and ultra-quiet operation, the NH-U9S is the way to go. Its price of C$74.95 reflects its premium nature and reliable performance.

On the other hand, if you need an efficient, budget-friendly cooler that fits into a compact case without compromising essential features, the AXP90 X47 is an excellent choice at C$43.39. It provides solid performance and compatibility for small builds without breaking the bank. In summary, your decision should hinge on whether you prioritise performance and quiet operation or affordability and compact size.