Be it an air cooler or AIO liquid cooler, DeepCool has been delivering some very interesting and impressive cooling solutions throughout the years. The AK620 is one of the latest CPU coolers DeepCool has to offer and because we have had a very good experience with DeepCool’s CPU coolers in the past, I’m really looking forward to seeing what kind of performance the AK620 can deliver.


Product Dimensions129×138×160 mm
Heatsink Dimensions127×110×157 mm
Net Weight1456 g
HeatpipeØ6 mm×6 pcs
Fan Dimensions120×120×25 mm
Fan Speed500~1850 RPM±10%
Fan Airflow68.99 CFM
Fan Air Pressure2.19 mmAq
Fan Noise≤28 dB(A)
Fan Connector4-pin PWM


The packaging is kept very simple but the odd combination of the cardboard box and white sleeve gives the cooler an odd vibe that might not be that appealing to some users. Inside to box, you’ll find the AK620, along with the accessories such as thermal paste, mounting bracket for both Intel and AMD platform, installation guide, a screwdriver, and a splitter cable for the cooling fans.


The AK620 features a dual tower heatsink design with six heat pipes that span through a dense array of aluminum fins, which is a common trait you’ll find on a good air cooler. The cooling fans are attached to both the heatsink towers using fan clips that can be attached and removed from the heatsink without any issue. Although it doesn’t come with fancy ARGB elements like some of the seemingly popular coolers out there, the minimalist design does have its own appeal.


The entire installation process is a breeze and the only time you’ll need to use the included screwdriver is to secure the heatsink to the mounting bracket. The Clearance for memory is also fairly reasonable as there’s still plenty of space left for memory kits like the XPG Spectrix D50 Xtreme. There are special cases, of course, such as unusually tall memory kits or non-common design motherboards like the ASUS ROG Maximus Apex motherboards that come with a DIMM.2 slot, which is in the way of the cooling fan on that side.

Test System Setup

The test is done using the following setup under an ambient temperature of 30°C, and CPU stressed with RealBench, 3 sets of tests to see how well the cooler can handle when the CPU is on a heavy workload.

CPUIntel Core i9-11900K
MemoryXPG Spectrix D50 Xtreme
Graphics CardGalax GTX 1660 SUPER 1-Click OC
Power SupplyCooler Master V1200 Platinum
Primary StorageKingston NV1 1TB NVMe SSD
Secondary StorageWD Black 6TB
CPU CoolerDeepCool AK620 / Noctua NH-U12A / Noctua NH-D15 / be quiet! Dark Rock Pro 4
ChassisStreacom BC1 Open Benchtable
Operating SystemWindows 10 64bit

DeepCool AK620 CPU Cooler Stock

For the first test with the Intel Core i9-11900K running on default settings, the observed peak power draw is at an average of 180W throughout the stress test with RealBench and all the coolers are doing fairly well in keeping the CPU as cool as possible. Despite going against some of the best-performing air coolers we have, the DeepCool AK620 is able to keep the i9-11900K at 80ºC consistently throughout the stress test and quickly reduces the CPU temperature down to 40ºC in just a matter of seconds after the test ended.

DeepCool AK620 CPU Cooler 5GHz 1

Moving on to the test with the Intel Core i9-11900K overclocked to 5.0GHz on all cores, all the coolers perform just as well as the first set of tests and are able to keep the CPU under 90ºC on load. The DeepCool AK620 might not be the best on the list but being able to keep an i9-11900K running on 5.0GHz under 90ºC is still an impressive feat for an air cooler. We did notice some random roaring from the fan during the stress test for a few seconds before going back to an almost inaudible level again but it doesn’t really affect the overall performance of the cooler itself.

Final Thoughts

There are quite a number of good things we can say about the DeepCool AK620 and the only complaint we have for now is probably the roaring fan during heavy workload. Though as it only lasted for a few seconds before going back down to an almost inaudible level again, it doesn’t really bother us much and it doesn’t really have any negative impact on the overall performance.

While not having any fancy ARGB elements to please the ARGB fanatics, the AK620 is still a very decent air cooler that has its own appeal to the non-RGB people and can get the job done without costing you an arm and a leg to get one. Despite being a dual-tower CPU cooler, the AK620 can easily fit in most ATX PC case that has at least 160mm clearance for CPU coolers and it’s very easy to install. The clearance for memory kits is very much acceptable as well and it’s very unlikely for one to encounter any clearance issue with their hardware unless they’re using very tall modules or motherboards that have an unusual layout.

Now that we can see what the DeepCool AK620 is capable of and if you can get over the fact that the cooling fans can be audible at times when the CPU is on a heavier load, I’d say the RM 279 price tag is reasonable.


  • Very easy to install
  • Reasonable clearance for memory modules
  • Decent cooling performance
  • Reasonable price


  • Random fan roaring when the CPU is on heavy load

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