For testing power consumption, we took our test system and plugged it
into a Kill-A-Watt power meter. For idle numbers, we allowed the system
to idle on the desktop for 15 minutes and took the reading. For load
numbers we measured the peak wattage used by the system while running
the OpenGL benchmark FurMark 1.9.1 at 640×480 resolution. We also ran the game HAWX 2 and looped the benchmark three times and recorded the highest Wattage seen on the meter.
Power Consumption Results: No big shocker here! The EVGA GeForce GTX 580 Classified 3072MB has higher clock speeds, higher voltages and twice as much memory, so of course it uses more power! The ASUS MATRIX GeForce GTX 580 Platinum looks like saint, but we know why!