Compare: NH-L9x65 vs AK620

Displayed below are comprehensive data and graphs that compare the Noctua NH-L9x65 to the DeepCool AK620, showcasing critical qualitative and performance metrics. Performance metrics are further segmented into distinct graphs while leveraging the AMD Ryzen 5 5600G, 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 5 5600G (Pick Another CPU)

CPU Cooler Details

Metric Cooler 1: NH-L9x65 Cooler 2: AK620
Cooler Name NH-L9x65 AK620
Fan 1 Name NF-A9x14 PWM FK120
Fan 2 Name FK120
Manufacture Rated dBa 23.6 28.0
Number of Heat Pipes 4 6
Full Size (WxHxD): 95x51x95 mm 138x160x129 mm
Heatsink 1 (WxHxD) 95x35x81 mm 127x109x40 mm
Heatsink 2 (WxHxD) 127x109x40 mm
Air Cooler Rating: Install 8 (Easy) 9 (Easy)
Manufacture's Link NH-L9x65 Manufacture's Link AK620 Manufacture's Link

Product Links

Link Type Cooler 1: NH-L9x65 Cooler 2: AK620
Amazon.com

Fan Details for CPU Cooler:


Fan 1

Metric Cooler 1 Cooler 2
Fan Name NF-A9x14 PWM FK120
Fan Location Top Front
Fan Flow Type Push Push
CPU Only Fan No No
Max RPM 2500 1850
Fan Size (mm) 92 120
Fan Width (mm) 25 25
Manufacture Rated dBa 19.9 28.0
Manufactured Rated Airflow (cmf) 29.7 69.0
Manufactured Rated Air Pressure (h2o) 1.6 2.2
Number Of Pins 4 4
PWM Fan Yes Yes
Bearing Type SSO2 Fluid Dynamic
Watts (W) 1.32 1.44
Current (A) 0.11 0.12
Max Volts 12.00 12.00

Fan 2

Metric Cooler 1 Cooler 2
Fan Name FK120
Fan Location Mid
Fan Flow Type Mid
CPU Only Fan No
Max RPM 1850
Fan Size (mm) 120
Fan Width (mm) 25
Manufacture Rated dBa 28.0
Manufactured Rated Airflow (cmf) 69.0
Manufactured Rated Air Pressure (h2o) 2.2
Number Of Pins 4
PWM Fan Yes
Bearing Type Fluid Dynamic
Watts (W) 1.44
Current (A) 0.12
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.

AK620

The AK620 boasts a dual-tower layout with two reasonably-sized aluminum heatsinks and a couple of FK120 PWM fans. Its design ensures excellent heat removal, allowing it to tackle even the most powerful processors. In terms of appearance, this cooler sports a sleek black top, two black fans, and a silver aluminum radiator, lending a refined look to any computer 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.

AK620

The AK620 has DeepCool's more modern installation designs as of 2023, which has more components than most for an easy install. The backplates are held down by single hand screwed nuts that also serve to hold the mount from the other side. This makes it easy to place the backplate correctly during the installation. The remaining portion of the install is similar to that of Noctua's typical installation, which makes it easy, but also can make the uninstallation challenging if the thermal paste sticks well to the CPU.




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.

AK620

The AK620 delivers remarkable performance due to its six heat pipes that effectively move heat from the CPU to the extensive fin array on the heatsink. It is compatible with a variety of processors, even high-end ones with high TDPs. This cooler can handle challenging workloads and extensive overclocking, making it an appealing cooling option. For those seeking Noctua-like performance without breaking the bank, the AK620 is a strong contender.


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.

AK620

A notable feature of the AK620 is its relatively quiet performance. The two 120mm FK120 PWM fans included are designed to deliver optimal airflow while maintaining low noise levels. Although this cooler might be louder than some alternatives of a similar size, its effective cooling makes it a strong candidate for your system. However, it's worth mentioning that some users may experience increased fan noise at mid RPMs occasionally.


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.

AK620

The AK620 is a high-performance cooler with a dual-tower design, six heat pipes, and two FK120 PWM fans that effectively dissipate heat, making it suitable for powerful processors and demanding workloads. Its sleek appearance features a black top, black fans, and a silver aluminum radiator, adding a refined touch to any computer setup. While the cooler generally operates quietly, it may be louder than some similar-sized alternatives, and occasional increased fan noise at mid RPMs is possible. Nevertheless, the AK620 is an appealing choice for those seeking top-tier performance on a budget.


AMD 5600G CPU Box Image

AMD Ryzen 5 5600G

Pick Another CPU

CPU Details:

Metric Value
Brand AMD
Cooler Name Ryzen 5 5600G
CPU Socket AM4
Cores 6
Thread Count 12
Max Temperature 95°C
Base Clock 3.9GHz
Max Boost Clock 4.4GHz
Cache L1
Cache L2 3MB
Cache L3 16MB
Processor Power Base 65W
Manufacture's Link Ryzen 5 5600G Manufacture's Link

Product Links

Link Type Value
Amazon.com

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