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 the synthetic stress test Furmark and record both results.
Both cards are efficient under load. The HD7850 VChamp demands around 120 watts when gaming, the the HD7790 VChamp around 80 watts.
Tags Review VTX3D VChamp HD7790 VTX3D VChamp HD7790 review VTX3D VChamp HD7850 VTX3D VChamp HD7850 review
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