Since power consumption is a big deal these days, we ran some simple power consumption tests on our test beds. The systems ran with identical power supplies, Solid-Sate Drives, Memory kits and motherboards from the same company. 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.
Benchmark Results: Power consumption has really improved these days and with no discrete graphics in the systems all the recent processors idle with the entire desktop platform using about 24-26 Watts of power. Not bad considering this is everything minus the monitor. At full load we hit 135W in Prime 95 on both the AMD A10-5800K and the AMD A10-6800K. At first this might not be impressive, but it is in the sense that the AMD A10-6800K runs at a higher clock speed, performs better and uses the same or less power. Not too shabby and AMD has improved the power efficiency with Richland! Intel’s flagship Core i7-4770K is the most power hungry Intel Haswell processor and you can see that it uses less power at load.