3 monitor setup, sli Gtx 580 vs 780. Hi I was wondering if anybody can help me answer this question. I'm currently running 2x 580 sli on my 3 monitor setup with nvidia surround. Now I'm trying to find a single gpu solution to reduce the heat comming from a dual card setup. Would a single Gtx 780 " galaxy hof" version give me better performance and heat control vs 2x580? Thx in advance