Stock Clock Testing
For our stock clock testing, we have configured our CPU to run at factory settings for speed, and 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
We started our testing today by turning the fans up all the way to 11. This brought the Cooler Master Hyper 212 Black to 57.13 degrees Celsius while the older Hyper 212 EVO landed a 55.5 degree Celsius temperature. The DeepCool AK400 brought up the rear at 58.75 degrees Celsius. The larger and more expensive G6 Stealth took the overall performance crown.
We noted that the max fan speed on the Cooler Master Hyper 212 Black topped out at 2300 RPM, the Cooler Master Hyper 212 EVO RPM, the DeepCool AK400 topped out at 1850 RPM, and the Iceberg Thermal G6 Stealth has the lowest max fan rpm at 1450 RPM.
1500 RPM Fan
Dropping the fans slightly to 1,500 RPM shifted the playing field a bit with the Hyper 212 Black and DeepCool AK400 tying at 60.5 degrees Celsius. They were led by the G6 Stealth and Hyper 212 EVO at 53.25 and 56.88 degrees Celsius respectively. Of note, the G6 Stealth is operating at its maximum of 1450 RPM for this test.
1000 RPM Fan
Lowering the fan’s RPM further to 1,000 RPM sees the placement shuffle a bit with the Hyper 212 Black at 61.75 degrees Celsius, just a single degree behind the Hyper 212 EVO. The DeepCool AK400 brought up the rear at 65 degrees Celsius. The G6 Stealth’s hold on the lead got a bit slimmer at the lower fan speeds but was still at 57.5 degrees Celsius. Of note here, the Hyper 212 Black is operating at 1100 RPM, which is the lowest speed we could get configured on our PWM motherboard.
600 RPM Fan
While we typically test at 600 RPM for the lowest end of our fans, the Hyper 212 Black fan bottomed out at 1100 RPM according to our PWM tuning, so the lowest speed testing can be found in the test above.
Let’s move on now to look at some overclocking results with our coolers.
OC Testing
For our OC testing, we have configured our CPU to run 4100MHz on all cores and set the voltage to 1.3875V. This yields an approximate power at the wall of 255w under load (a 197w differential from idle, which pulls about 58w). This results in the CPU running at 4.1GHz on all cores during the looping rounds of Cinebench R20.
Max Fans
Running our HSFs at full tilt leads to the Cooler Master Hyper 212 Black posting a temperature of 75.38 which is significantly cooler than both the Hyper 212 EVO and AK400 which were at 79.75 and 81 degrees Celsius respectively. The G6 maintains the lead as expected at 71 degrees Celsius as it has more heat pipes and more fan capacity.
We noted that the max fan speed on the Cooler Master Hyper 212 Black topped out at 2300 RPM, the Cooler Master Hyper 212 EVO RPM, the DeepCool AK400 topped out at 1850 RPM, and the Iceberg Thermal G6 Stealth has the lowest max fan rpm at 1450 RPM.
1500 RPM Fans
At the 1500 RPM fan speed, the Hyper 212 Black delivered a temperature of 76.75 degrees Celsius which was 1.25 degrees above the Hyper 212 EVO and 5.75 degrees above the G6 Stealth. It also beat out the AK400 which was at 83 degrees Celsius.
1000 RPM Fans
While we typically have 1000 RPM fan results in the overclocked section, for this class of coolers (single fan 4 or 6 heat pipes) that we’re looking at today, the test rig tends to crash before finding out exactly what temperature they are cooling to.
Now that we have seen how all of our units cool, let’s see if we can still hear!