All fans were individually tested on the Thermalright Macho Rev.A (BW) CPU cooler to determine cooling performance. We understand using a CPU heatsink performance can only ever be a proxy for performance/airflow, and that the performance figures will vary between different types of heatsinks, BUT this is the best method we are able to conduct.
Temperatures were taken at a consistent room temperature of 22 degrees
Delta temperatures have been used to account for small fluctuations in room temperature between 21.5-22.5
Prime 95 was run for 15 minutes and the average maximum CPU temperature was recorded as noted by CPUID HW Monitor
The acoustic measurements were taken 2 inches/ 5cm away from the tested fans with the power supply fan and GPU fan isolated/turned off
The ambient noise level as recorded by our sound meter was 37 dBA and delta noise levels have been used in our graphs
There is approximately a 1 degree celsius margin of error in our temperature recording software
There is approximately a 1dBA margin of error with our decibel meter