Compare: NH-L9x65 vs NH-D15 G2

Displayed below are comprehensive data and graphs that compare the Noctua NH-L9x65 to the Noctua NH-D15 G2, showcasing critical qualitative and performance metrics. Performance metrics are further segmented into distinct graphs while leveraging the AMD Ryzen 7 5800X, illustrating how each cooler performs under various varying CPU power levels. This allows for a clear comparison of their relative performance and sound output when under different heat loads. The comparison is conducted under the following conditions:
  • Case: Praxis Wetbench
  • Ambient Temperatures: 23°C
  • CPU: AMD Ryzen 7 5800X (Pick Another CPU)

CPU Cooler Details

Metric Cooler 1: NH-L9x65 Cooler 2: NH-D15 G2
Cooler Name NH-L9x65 NH-D15 G2
Fan 1 Name NF-A9x14 PWM NF-A14x25r G2
Fan 2 Name NF-A14x25r G2
Manufacture Rated dBa 23.6 24.8
Number of Heat Pipes 4 8
Full Size (WxHxD): 95x51x95 mm 150x168x152 mm
Heatsink 1 (WxHxD) 95x35x81 mm 150x120x55 mm
Heatsink 2 (WxHxD) 150x120x50 mm
Air Cooler Rating: Install 8 (Easy) 7 (Easy)
Manufacture's Link NH-L9x65 Manufacture's Link NH-D15 G2 Manufacture's Link

Product Links

Link Type Cooler 1: NH-L9x65 Cooler 2: NH-D15 G2
Amazon.com

Fan Details for CPU Cooler:


Fan 1

Metric Cooler 1 Cooler 2
Fan Name NF-A9x14 PWM NF-A14x25r G2
Fan Location Top Front
Fan Flow Type Push Push
CPU Only Fan No No
Max RPM 2500 1500
Fan Size (mm) 92 140
Fan Width (mm) 25 25
Manufacture Rated dBa 19.9 24.8
Manufactured Rated Airflow (cmf) 29.7 91.6
Manufactured Rated Air Pressure (h2o) 1.6
Number Of Pins 4 4
PWM Fan Yes Yes
Bearing Type SSO2 SSO2
Watts (W) 1.32 2.28
Current (A) 0.11 0.19
Max Volts 12.00 12.00

Fan 2

Metric Cooler 1 Cooler 2
Fan Name NF-A14x25r G2
Fan Location Mid
Fan Flow Type Mid
CPU Only Fan No
Max RPM 1500
Fan Size (mm) 140
Fan Width (mm) 25
Manufacture Rated dBa 24.8
Manufactured Rated Airflow (cmf) 91.6
Manufactured Rated Air Pressure (h2o)
Number Of Pins 4
PWM Fan Yes
Bearing Type SSO2
Watts (W) 2.28
Current (A) 0.19
Max Volts 12.00


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.

NH-D15 G2

This cooler is quite large and showcases Noctua's signature design, appealing to diehard PC builders who don't want to compromise on cooling performance. The NH-D15 G2 closely resembles the previous generation, with a few updates. This version features eight heat pipes and offset depths on the two heatsinks


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.

NH-D15 G2

The NH-D15 G2 retains the same installation design as its predecessor, with the addition of a new bracket that allows for offset mounting on AM5 CPUs. The installation process is straightforward, guided by clear instructions that adhere to industry standards for top-tier coolers. However, the cooler's large size may pose challenges when maneuvering it within the case.




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.

NH-D15 G2

The Noctua's NH-D15 G2 cooler is hard to beat in terms of cooling performance, even outperforming AIOs from various other brands—a result expected given its larger size. However, when compared to the previous generation, its performance is on par, offering little improvement.


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.

NH-D15 G2

Compared to the average cooler, the Noctua NH-D15 G2 is louder than most on the market. However, when performance is evaluated on a noise-normalized basis, this cooler is tough to beat, offering excellent cooling for a given noise level. This means you can keep your cooler quiet when needed, while still having the headroom to increase the speed for enhanced cooling performance.


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.

NH-D15 G2

The Noctua NH-D15 G2 retains the familiar installation design of its predecessor, with the addition of a new bracket for offset mounting on AM5 CPUs. While its large size may make installation a bit challenging, the process is straightforward, with clear instructions that meet industry standards. The cooler's substantial size is matched by its performance, offering exceptional cooling that even surpasses many AIOs from other brands. Although its performance is on par with the previous generation, the NH-D15 G2 still delivers excellent cooling, particularly when considering noise levels. Despite being louder than the average cooler, it excels in noise-normalized performance, allowing users to maintain quiet operation while having the flexibility to ramp up speed for maximum cooling when needed.


AMD 5800X CPU Box Image

AMD Ryzen 7 5800X

Pick Another CPU

CPU Details:

Metric Value
Brand AMD
Cooler Name Ryzen 7 5800X
CPU Socket AM4
Cores 8
Thread Count 16
Max Temperature 90°C
Base Clock 3.8GHz
Max Boost Clock 4.7GHz
Cache L1
Cache L2 4MB
Cache L3 32MB
Processor Power Base 105W
Manufacture's Link Ryzen 7 5800X Manufacture's Link

Product Links

Link Type Value
Amazon.com

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