1000-1010 watts give or take a few.

The cards will give 250mhs or more headless not over-clocked and set up properly, but I ran with a display and the cards over-clocked from 800mhz to 825MHz, they got 263-266mhs each except the one with the head which got 235mhs.


I have them suspended above the motherboard with a metal rack I built.
I fit 10 rigs on one five level shelf.