System Power Consumption
To obtain accurate results we have connected the system to a Power Angle power meter that has in turn been attached to a 1500watt UPS. This ensures only 120volt power is supplied to the PSU and removes an variances that could potential crop up because of brownouts and power spikes.
In order to stress the video card we have once again used Unigine’s Valley benchmark and ran it for 20 minutes to determine peak system power consumption. For idle results we have let the system idle at the Windows 7 desktop for 25 minutes and recorded the peak idle power consumption.
Even though this is a heavily overclocked version of the GeForce GTX 770, the GK104 core does require less power than a GK110. With that being said the PNY GeForce GTX 770 XLR8 OC2 is rather power hungry by 770 standards. This means you certainly will not be opting for this card over a 780 because of power savings! Thankfully, the OC2 doesn’t need any help in this regards as the real world performance does do an admirably job all on its own.