05-16-2017, 06:04 PM
The pull from the wall should be just a little bit higher than the pull from the PSU due to losses from non-perfect efficiency. Under worst case scenario, your 1080 will draw a rough 300W and your 1070 will draw maybe a peak of 200W. Add another 200W for the rest of the board just to be safe and you still, under the calculated worst case draw, have ~300W to use. You can fit a whole second 1080 onto that machine with the current power supply and be relatively safe.