Compare: AK620 vs NH-D15 G2

Displayed below are comprehensive data and graphs that compare the DeepCool AK620 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: AK620 Cooler 2: NH-D15 G2
Cooler Name AK620 NH-D15 G2
Fan 1 Name FK120 NF-A14x25r G2
Fan 2 Name FK120 NF-A14x25r G2
Manufacture Rated dBa 28.0 24.8
Number of Heat Pipes 6 8
Full Size (WxHxD): 138x160x129 mm 150x168x152 mm
Heatsink 1 (WxHxD) 127x109x40 mm 150x120x55 mm
Heatsink 2 (WxHxD) 127x109x40 mm 150x120x50 mm
Air Cooler Rating: Install 9 (Easy) 7 (Easy)
Manufacture's Link AK620 Manufacture's Link NH-D15 G2 Manufacture's Link

Product Links

Link Type Cooler 1: AK620 Cooler 2: NH-D15 G2
Amazon.com

Fan Details for CPU Cooler:


Fan 1

Metric Cooler 1 Cooler 2
Fan Name FK120 NF-A14x25r G2
Fan Location Front Front
Fan Flow Type Push Push
CPU Only Fan No No
Max RPM 1850 1500
Fan Size (mm) 120 140
Fan Width (mm) 25 25
Manufacture Rated dBa 28.0 24.8
Manufactured Rated Airflow (cmf) 69.0 91.6
Manufactured Rated Air Pressure (h2o) 2.2
Number Of Pins 4 4
PWM Fan Yes Yes
Bearing Type Fluid Dynamic SSO2
Watts (W) 1.44 2.28
Current (A) 0.12 0.19
Max Volts 12.00 12.00

Fan 2

Metric Cooler 1 Cooler 2
Fan Name FK120 NF-A14x25r G2
Fan Location Mid Mid
Fan Flow Type Mid Mid
CPU Only Fan No No
Max RPM 1850 1500
Fan Size (mm) 120 140
Fan Width (mm) 25 25
Manufacture Rated dBa 28.0 24.8
Manufactured Rated Airflow (cmf) 69.0 91.6
Manufactured Rated Air Pressure (h2o) 2.2
Number Of Pins 4 4
PWM Fan Yes Yes
Bearing Type Fluid Dynamic SSO2
Watts (W) 1.44 2.28
Current (A) 0.12 0.19
Max Volts 12.00 12.00


Design and Aesthetics:


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.

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:


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.

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:


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.

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:


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.

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:


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.

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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