To test power consumption today we are using a Keithley Integra unit and we measure power consumption from the VGA card inputs, not the system wide drain. We measure results while gaming in Crysis Warhead and record the results.
In such an energy aware climate, AMD are making a big deal out of their new ‘ZeroCore Power’ technology. Many solutions today use power gating, clock gating and memory compression to reduce idle power requirements, but ZeroCore power technology can completely power down the core GPU while the rest of the system remains active.
Power consumption of the Club3D RoyalAce falls into line behind the HIS HD7970 IceQX2 Turbo graphics card, consuming around 245 watts when gaming. These are powerful graphics cards, but they do consume a lot of power under load.