Noctua NH-L9i-17xx vs Thermalright AXP90 X47 Full Low Profile CPU Cooler

Overview of the Noctua NH-L9i-17xx and Thermalright AXP90 X47

The Noctua NH-L9i-17xx is priced at C$59.95, while the Thermalright AXP90 X47 Full Low Profile CPU Cooler is significantly more affordable at C$43.39. Both coolers are designed for compact systems, but they cater to slightly different user needs and preferences. The Noctua brand is well-respected for its performance and quiet operation, while Thermalright offers a competitive alternative with unique technologies and features.

Design and Build Quality

The Noctua NH-L9i-17xx boasts a sleek design with a height of only 37mm, making it ideal for compact HTPC and Small Form Factor (SFF) cases. Its renowned NF-A9x14 slim 92mm fan is engineered for low noise while providing excellent cooling performance. In contrast, the Thermalright AXP90 X47 has a taller profile at 47mm, yet it remains low profile enough for similar applications. Its build features pure copper construction, which enhances oxidation resistance and overall durability. Both coolers are designed to fit in tight spaces, but the NH-L9i-17xx edges ahead with its slightly lower height.

Cooling Performance

When it comes to cooling performance, the Noctua NH-L9i-17xx is equipped with a fan that ensures full cooling under load and whisper-quiet operation at idle, which is crucial for users who value silent performance. The Thermalright AXP90 X47 utilises AGHP technology with its 4×6mm heat pipes to enhance cooling efficiency, effectively doubling the cooling capability through advanced welding techniques. The NH-L9i-17xx's renowned cooling capabilities have earned it over 200 awards and recommendations, highlighting its exceptional performance in demanding scenarios.

Compatibility

The Noctua NH-L9i-17xx is specifically tailored for Intel’s LGA1851 and LGA1700 platforms, ensuring 100% RAM and PCIe compatibility across ITX, Micro-ATX, and ATX motherboards. The cooler includes a SecuFirm2 mounting system that simplifies installation. On the other hand, the Thermalright AXP90 X47 offers broader compatibility, supporting various Intel sockets as well as AMD AM4 and AM5. This makes the AXP90 X47 a versatile choice for users with mixed platform setups, though the NH-L9i-17xx is still a robust option for Intel-centric builds.

Noise Levels

The Noctua NH-L9i-17xx is designed to operate quietly, particularly at idle, thanks to its Low-Noise Adaptor and PWM control. While specific decibel ratings are not provided, Noctua is known for prioritising silent operation. Conversely, the Thermalright AXP90 X47 operates at a maximum noise level of 22.4 dB(A), which is quite reasonable for a cooler of its size. Users who are particularly sensitive to noise may find the NH-L9i-17xx preferable, while the AXP90 X47 offers a good balance between performance and sound output.

Installation Process

Installation is straightforward for both coolers. The Noctua NH-L9i-17xx includes high-end NT-H1 thermal paste and a simple mounting system tailored for Intel CPUs. This makes it user-friendly, especially for those who may not have extensive experience in PC building. The Thermalright AXP90 X47 also comes with a manual and installation video, making it accessible for users of varying skill levels. However, some users may appreciate the Noctua's reputation for ease of setup due to its secure mounting system.

Price and Value

With a price of C$59.95, the Noctua NH-L9i-17xx is more expensive than the Thermalright AXP90 X47, which retails at C$43.39. The price difference can be justified by Noctua's reputation for quality and performance, as evidenced by its numerous awards. However, the AXP90 X47 offers excellent value for users looking for an effective cooler without breaking the bank, particularly in multi-platform scenarios where compatibility is essential.

Which should you buy?

Choosing between the Noctua NH-L9i-17xx and the Thermalright AXP90 X47 ultimately comes down to your specific needs and budget. If you prioritise performance, low noise, and plan to use an Intel LGA1851 or LGA1700 processor, the NH-L9i-17xx is a reliable choice backed by a strong reputation. However, if you're looking for a more cost-effective solution that offers broad compatibility across platforms, the AXP90 X47 is a commendable alternative. Each cooler has its strengths, making them suitable for different types of users in the compact CPU cooler market.