"oh well i didnt know nvidia dropped down support for sli on low end gpus, anyway the point is guys, weak card IS WEAK whatever you do, i know it for sure when crossfire does not work for my setup properly or entirely...the best solution is one strong gpu and oc'ing it...later next year you buy a second and you are a master...buying 2 mid-range or low-end cards and mixing their performance is a risk" . . . .