We used a calibrated meter to measure the power at the wall. No monitors were factored into the readings. The system power drain was measured in the following states:
Idle: when resting at the desktop.
load: when primed with Cinebench R11.5 64 bit. Only the processor is stressed.
Gaming Load: running the ‘combined’ test in 3dMark 11. Processor and graphics card are stressed.
The OCUK Prodigy Arctic Gaming system only demands 71 watts when idle, rising to 127 watts when all four cores are loaded to 100%. The KFA2 GTX680 OC LTD ED V2 demands the most power as we would expect, increasing total system demand to just under 300 watts.