I'm am currently running a MSI gtx 680 twin frozr 4gb card and have found 2nd one on eBay for a good price (it's already on the way, so don't tell me I don't need it or just to switch to the 780). I'm looking to double up these in SLI but I'm going to need more juice. I currently have a 700W 80 Plus PSU. What would you suggest for a PSU? I was thinking 900W 80 Plus Gold.
Well, I'm running a ECS Golden Z77H2-AX motherboard with an Intel i7 3770K, 16 GB Ram, and a CM H100i liquid cooler. Maybe I will try to run it without upgrading the PSU. I'm just a little concerned about the efficiency of my current PSU.