SLI GTX 780 msi lightning

forged

Honorable
Nov 24, 2013
28
0
10,530
that would push a 750 psu to the limit. I own a lightning and i'm getting between 380 - 425W at the wall (system total) @1200+ Mhz with >1.2V core voltage. Hence, 850W psu is a safe bet. If you're not going to overclock the lightning (shame on you) then 750W psu is OK.