Stock Clock Testing
For our stock clock testing, we have configured our CPU to run at factory settings for speed, and voltage, and configured memory to XMP mode. This yields an approximate power at the wall of 300w under load (a 200w differential from idle, which pulls about 100w). This results in the CPU running at 3.8GHz on all cores during the looping rounds of Cinebench R20. You can read more about this in our introduction article here.
Max Fans – 100% Pump Speed
Starting off our testing today, the DeepCool LS720 lands at 56 degrees Celsius having all fans blazing as fast as they will go. This ties with the XPG LEVANTE 360 and Enermax LIQTECH II 360mm. Notably, the DeepCool CASTLE 360EX was a degree warmer.
Keep in mind that with this test, the fans are all spinning at different RPM levels at whatever the maximum speed happens to be.
1500 RPM Fans – 100% Pump Speed
Dropping all fans down to the same speed at 1500RPM, we see similar results with the DeepCool LS750 as we did at maximum speeds, with it tying with the DeepCool CASTLE 360EX, but beaten by the MSI MEG CORELIQUID S360 and the Enermax LIQTECH II 360mm.
1000 RPM Fans – 100% Pump Speed
Dropping down to 1000 RPM on the fans shuffles the field a bit, but the DeepCool LS720 remains in the middle of the pack, this time tied with the Enermax LIQTECH II 360.
600 RPM Fans – 100% Pump Speed
At our lowest tested speed of 600RPM. the DeepCool LS720 drops behind most of the pack (except for the XPG LEVANTE 360 which was playing a different game) at 75 degrees Celsius. Overall, it seems the effectiveness of the DeepCool LS720 drops fairly quickly as you lower the fan speed at and below 1000 RPM.