Hi guys, i've been planning to upgrade from my gtx 460 sli to a single beast card. My friends have told me to upgrade to gtx 670 (only about 30-25% better than my sli'd 460s). A gtx 670 is aroudn 400, while gtx 680 is around 500. I managed to find a good deal on an asus gtx 680 dcu2 TOP, and i also found another gigabyte gtx 670 wind forcex3 OC. Now the question is, should i get the 680 or the 670? I still have the i5 760 2.8ghz @3.4ghz. Would either of these cards bottleneck my processors? Or would i be just fine?