Guys I think you are overestimating cards here. I run CF 4850s at 1680x1050. Let me tell you , I wish I had the GDDR5. 512meg of GDDR3 doesn't cut it at 1680x1050. I can run FC2 pretty well, but I can't max it and that's with 2 4850s. For 1680x1050 I would recommend a 4890.