Compare: AK620 vs Fuma 3

Displayed below are comprehensive data and graphs that compare the DeepCool AK620 to the Scythe Fuma 3, 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: Fuma 3
Cooler Name AK620 Fuma 3
Fan 1 Name FK120 Scythe Kaze Flex II 120mm Slim Fan
Fan 2 Name FK120 Scythe Kaze Flex II 120mm Fan
Manufacture Rated dBa 28.0 28.6
Number of Heat Pipes 6 6
Full Size (WxHxD): 138x160x129 mm 128x154x138 mm
Heatsink 1 (WxHxD) 127x109x40 mm
Heatsink 2 (WxHxD) 127x109x40 mm
Air Cooler Rating: Install 9 (Easy) 8 (Easy)
Manufacture's Link AK620 Manufacture's Link Fuma 3 Manufacture's Link

Product Links

Link Type Cooler 1: AK620 Cooler 2: Fuma 3

Fan Details for CPU Cooler:

Fan 1

Metric Cooler 1 Cooler 2
Fan Name FK120 Scythe Kaze Flex II 120mm Slim Fan
Fan Location Front Front
Fan Flow Type Push Push
CPU Only Fan No No
Max RPM 1850 1500
Fan Size (mm) 120 120
Fan Width (mm) 25 17
Manufacture Rated dBa 28.0 23.9
Manufactured Rated Airflow (cmf) 69.0 33.9
Manufactured Rated Air Pressure (h2o) 2.2 0.9
Number Of Pins 4 4
PWM Fan Yes Yes
Bearing Type Fluid Dynamic Fluid Dynamic
Watts (W) 1.44 0.96
Current (A) 0.12 0.08
Max Volts 12.00 12.00

Fan 2

Metric Cooler 1 Cooler 2
Fan Name FK120 Scythe Kaze Flex II 120mm Fan
Fan Location Mid Mid
Fan Flow Type Mid Mid
CPU Only Fan No No
Max RPM 1850 1500
Fan Size (mm) 120 120
Fan Width (mm) 25 27
Manufacture Rated dBa 28.0 24.9
Manufactured Rated Airflow (cmf) 69.0 51.2
Manufactured Rated Air Pressure (h2o) 2.2 1.1
Number Of Pins 4 4
PWM Fan Yes Yes
Bearing Type Fluid Dynamic Fluid Dynamic
Watts (W) 1.44 1.56
Current (A) 0.12 0.13
Max Volts 12.00 12.00

Design and Aesthetics:


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.

Fuma 3

This cooler boasts a sleek appearance with a smooth top surface. Nonetheless, it's worth noting that the plastic covering the exposed heat pipes, while contributing to a polished appearance, is a rather subdued gray and lacks the eye-catching appeal of more vibrant or shiny options. This cooler is an excellent choice for those seeking exceptional cooling performance coupled with a more understated aesthetic.

Install Notes:


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.

Fuma 3

This cooler employs the standard mounting system commonly found in premium coolers. In comparison to the Fuma 2, the Fuma 3 has introduced a minor adjustment that enhances the ease of installation by preventing over-tightening, a feature absent in the Fuma 2. Overall, the installation process for this cooler is straightforward, and it has demonstrated improvements compared to previous Fuma iterations.

Cooling Performance:


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.

Fuma 3

The Fuma 3 is a mid-performance cooler offering moderate cooling capabilities. While it may not be suitable for high-heat CPUs, it's an excellent option for users who appreciate its aesthetic appeal and require effective cooling for CPUs with moderate thermal loads.

Noise Performance:


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.

Fuma 3

The dual 120mm Kaze Flex fans are engineered for maximum airflow and moderate noise levels. In terms of the noise-to-cooling ratio, it strikes a good balance, providing an average level of noise for the cooling performance it delivers.



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.

Fuma 3

The Fuma 3 cooler uses a standard premium cooler mounting system but adds a minor tweak from the prior generation for easier installation. Its sleek design features a subdued gray plastic top, making it suitable for users who prioritize both cooling performance and aesthetics, especially for mid-heat CPUs. Equipped with two 120mm fans, it strikes a balanced noise-to-cooling ratio.

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


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