From what I've read, most of the 680i boards are near enough the same as they're all based on the nVidia reference designs. Unfortunately, while one of my mates has a BFG 680i with no problems, I've got two and suffered with dead boards, slowdowns, lockups, and instability. Seems a bit hit n miss to me, like if you get a good one, it's truly excellent, but if you get a duff one, you really are screwed (even after two RMAs in my case). On that note, from what I've read here and elsewhere, a proportion of all 680i owners experience these problems, but EVGAs support and returns seem a little better organised than BFGs.