Since power consumption is a big deal these days, we ran some simple power consumption tests on our test beds. The systems ran with the power supplies, case fans, video cards and hard drives. To measure idle usage, we ran the system at idle for one hour on the desktop with no screen saver and took the measurement. For load measurements, Prime95’s in-place large FFT’s were run on all cores to make sure each and every processor was at 100% load for maximum power consumption and heat. Curious about real world scenarios, we decided to drop Furmark and ran 3DMark 11 on the performance preset and took the maximum power consumption during the first GPU test.
Benchmark Results: The ASUS P8Z68-V Pro pulled slightly more power from the wall than the GIGABYTE P67A-UD7 did. The difference at idle and while running 3DMark 11 was only 5 Watts while loading the CPU with Prime 95 we saw a difference of 14 Watts. We are running an early version of the P8Z68-V Pro system BIOS which may have an effect on the power consumption.