We measured the power consumption with the system resting at the Windows 7 desktop, representing idle values.
The power consumption of our entire test system is measured at the wall while loading only the CPU using Prime95’s Small FFTs setting. The rest of the system’s components were operating in their idle states, hence the increased power consumption values (in comparison to the idle figures) are largely related to the load on the CPU and motherboard power delivery components.
The Extreme Engine Digi+ III components are advertised as being efficient, and our power consumption figures would back that point up. Using 69 Watts when idling at stock speed is the second lowest Z87 result that we have seen, bested only by Gigabyte’s Z87-D3HP which is very light in regards to add-on controllers.