Today we are measuring the system wattage at the wall socket via a calibrated meter.The system power drain was measured in the following states:Idle: when resting at the desktop.
Gaming Load: 3Dmark 11 ‘combined test’.
Power consumption of the system without a discrete graphics cards is very impressive, demanding less than 90watts under load at the reference clock speeds. Overclocking adds a little more to the power drain, but it is still very impressive.