Cooling Efficiency Tests
Dependence of Cooler Efficiency on Fans Number and Rotation Speed
In this test session the maximum Intel processor frequency was limited by the cooling efficiency of Tuniq Tower 120 Extreme cooler with one default fan at 600 RPM and made 3885 MHz at 1.3375 V Vcore. During the tests with two fans instead of a single default one we used two Thermalright TR-FDB fans. The fan rotation speed was adjusted in 200 RPM increments. The results are given on the chart below:
With one default fan the efficiency of Tuniq Tower 120 Extreme increases linearly as the fan rotation speed rises from 800 to 1600 RPM. The CPU temperature in this range lowers by 16 °C (from 95 to 79 °C). It makes almost no sense to increase the rotation speed over 1600 RPM, because in this case the temperature lowers only by 1 °C.
The results obtained on the new cooler with two fans are pretty interesting. By replacing the default fan with two Thermalright ones allows to lower the peak CPU temperature by 4 °C at the same rotation speed of 600 RPM. At 800 RPM the cooling efficiency improves even more: by 7 °C (from 91 °C to 84 °C) and provides an 11-degree advantage over the single-fan mode at the same speed. Unfortunately, it is impossible to install the second fan onto Tuniq Tower 120 Extreme using standard retention. Further increase in the fans rotation speed produces linear improvement of the cooling efficiency in the interval from 1000 to 1400 RPM, while higher rotation speeds do not really pay back in this Tuniq Tower 120 Extreme configuration.