Compare: NH-L9x65 vs AXP90-X47 Full Copper

Design and Aesthetics:

NH-L9x65

The NH-L9x65 features a low-profile design with a slim aluminum heatsink and a 92mm NF-A9x14 PWM fan. With a height of only 65mm, the cooler is compatible with a wide range of PC cases, including mini-ITX and HTPC builds. Aesthetically, the NH-L9x65 maintains Noctua's signature beige and brown color scheme, reflecting the brand's reputation for quality and performance.

AXP90-X47 Full Copper

This cooler features a sleek, low-profile design, making it an excellent choice for compact builds where space is a priority. Its copper construction not only enhances thermal performance but also adds a distinctive look that stands out in any setup.

Install Notes:

NH-L9x65

This cooler is designed to be a typical Noctua cooler installation, which is easy to do and rather straightforward. This means that if you're new to installing a CPU cooler, there is little room to make a mistake. For AMD is uses the original AMD backplate. Only downside to the Noctua installation is that the cooler may stick to your CPU and given how the screws are setup, you can't slide the cooler off the CPU like other brands.

AXP90-X47 Full Copper

Installing this cooler is more involved than a standard cooler due to its low-profile design, which requires it to be screwed in from behind rather than from the top, as is common with most coolers. While the installation is relatively easy if the motherboard is not yet secured in the case, it can be challenging if you attempt to install it with the motherboard already mounted. Additionally, the cooler's brackets are attached via screws that need to be removed and swapped depending on the CPU you're using.

Cooling Performance:

NH-L9x65

The performance of the NH-L9x65 is suitable for most mainstream CPUs and everyday tasks. It has four heat pipes that efficiently transfer heat away from the CPU to the heatsink. While the cooler may not be the best choice for high-end CPUs with high TDPs or extreme overclocking scenarios, it provides adequate cooling for lower TDP CPUs, especially in small form factor builds with limited space.

AXP90-X47 Full Copper

Given its compact size, it’s no surprise that this cooler won’t top the charts in cooling performance. However, it delivers impressive efficiency for its form factor, outperforming stock coolers of similar size.

Noise Performance:

NH-L9x65

The 92mm NF-A9x14 PWM fan included with the NH-L9x65 is designed for quiet operation while maintaining good airflow for its size. Noctua fans are well-known for their excellent acoustic performance, and the NH-L9x65 is no exception. Users can expect quiet cooling even during low workloads, however due to it's limited cooling abilities, it may have to run louder moderate workloads or gaming sessions.

AXP90-X47 Full Copper

With its high-speed 2700 RPM single fan, this cooler has the potential to produce higher noise levels than typical models. However, given its compact size, it's expected to become audible when delivering high-performance cooling.

Summary:

NH-L9x65

The Noctua NH-L9x65 is a compact and efficient air cooler that's well-suited for small form factor builds and systems with limited space. Its low-profile design, adequate cooling performance, and quiet operation make it an attractive option for those looking for a space-saving and reliable cooling solution.

AXP90-X47 Full Copper

This cooler’s sleek, low-profile design makes it an excellent choice for compact builds where space is a priority. Its copper construction enhances thermal performance while adding a distinctive look to any setup. While it won’t compete with larger coolers in raw cooling power, it outperforms stock coolers of similar size. The high-speed 2700 RPM fan can produce noticeable noise under heavy loads, which is expected given its compact form factor. Installation is more involved than standard coolers, requiring mounting from behind rather than from the top, making it easier to install before securing the motherboard in the case. Additionally, its brackets must be swapped depending on the CPU, adding an extra step to the process.