DeepCool AK400 CPU Cooler Review

The FPS Review may receive a commission if you purchase something after clicking a link in this article.

Stock Clock Testing

For our stock clock testing, we have configured our CPU to run at factory settings for speed, voltage. This yields an approximate power at the wall of 185w under load (a 127w differential from idle, which pulls about 58w). This results in the CPU running at 3.7GHz on all cores during the looping rounds of Cinebench R20.

Max Fan

DeepCool AK400 max RPM fan stock clock temperature testing

We started our testing today by turning the fans up all the way to 11. This brought the DeepCool AK400 to 58.75 degrees Celsius which bested the SilverStone AR01 V3’s 59 degrees Celsius. However, the Cooler Master Hyper 212 EVO and be quiet! Dark Rock Pro 4 did a cooler job at 55.5 and 57 degrees Celsius, respectively.

We noted that the max fan speed on the DeepCool AK400 topped out at 1850RPM, the Cooler Master Hyper 212 EVO topped out at 2050 RPM, and the SilverStone AR01 V3 topped out at 2150RPM, and the be quiet! Dark Rock Pro 4 has the lowest max fan rpm at 1500 RPM.

1500 RPM Fan

DeepCool AK400 1500 RPM fan stock clock temperature testing

Dropping the fans slightly to 1,500 RPM didn’t shake up the field by much at all, with three of the coolers giving up ground against the Dark Rock Pro 4 which was still operating at its maximum fan speed.

The DeepCool AK400 came in at 60.5 degrees Celsius while the Cooler Master Hyper 212 EVO and be quiet! Dark Rock Pro 4 edged it out at 56.88 and 57 degrees Celsius, respectively. The SilverStone AR01 V3 brings up the rear at 61.5 degrees Celsius.

1000 RPM Fan

DeepCool AK400 1000RPM fan stock clock temperature testing

Lowering the fans RPM further to 1,000 RPM sees the DeepCool AK400 coast up to 65 degrees Celsius. The Dark Rock Pro 4 takes the lead at 60 degrees Celsius, just behind the Cooler Master Hyper 212 EVO at 60.75 degrees Celsius. The SilverStone AR01 V3 holds up the rear at 67 degrees Celsius.

600 RPM Fan

DeepCool AK400 600RPM fan stock clock temperature testing

Finally, down at 600 RPM, the DeepCool AK400 spikes up to 77.5 degrees Celsius compared to the Dark Rock Pro 4 and Cooler Master Hyper 212 EVO’s 65.5 and 71 degrees Celsius respectively. The SilverStone AR01 V3 lands last again at 83.5 degrees Celsius.

Let’s move on now to look at some overclocking results with our coolers.

Join the discussion in our forums...

David Schroth
David is a computer hardware enthusiast that has been tinkering with computer hardware for the past 25 years and writing reviews for more than ten years. He's the Founder and Editor in Chief of The FPS Review.

Recent News