Hi I'm going to be building my first gaming computer in a month or two when I can get the money. Pretty much picked out everything I want except for the graphics card. Not sure if I should get 2 mid range cards or just go for one high end. I was thinking about getting two GTX 460 1 GB cards, but I heard that one GTX 580 will outperform in it many cases. Should I just go for one GTX 580 and SLI it in the future or get the two GTX 460? My budget is around $300-500. Also can someone explain to me some how I should evaluate graphics cards: more bits? more core clocks? more effective memory? because I see some 1GB cards for under $100 and others for over $200.
Also is there a major difference between sata 3.0 and sata 6.0?
Does anyone know the difference in performance between say gtx 460 in SLI, gtx 560 TI SLI, gtx 570, and gtx 580? Is the 580 worth the money in terms of performance?
Looking around the forums a lot of people seem to recommend the hd 6950, but criticize the buggy drivers. It seems that the HD 6950 and the gtx 570 seem to give more bang for the buck, but is the $75 premium on the 570 worth it?