Originally Posted by crazyeyesreaper
in daul card configs 6950s are on part with dual 570s and dual 6970s are on par with dual 580s so grabbing 2 580s is far more expensive for comparable performance as the 2 6950s if overclocked will be only 5%-8% slower then dual 580s at a near $400 cheaper comparatively. That said depending on Resolution and CPU id say 580 as well but if on i7 and at 1920x1200 or 1080p then dual 6950s
a 6950 cf are NEVER be in same category as dual gtx 570 and neither 6970 cf can put tiny scratch on gtx 580 sli
. 6970 is weaker than gtx 570 in dx9/dx10/dx11 heavy tessellation and aa/af/msaa and ONLY tight up with gtx series in super ridiculous high resolution with the benefit of ram size(back to good old day 2900xt 1gb vs 8800gts 320mb
) of cause unless you never see the benchmark from tom's hardware/anandtech/guru 3d OTHER THAN WIZARD's own bench. a 6970 is only marginally better than 5870 and 6950 is only 8% better than 6870. i really don't like the point that people like to compare a mid range camery(6970/6950) to a high end ferrari(gtx 580/570)....of cause on wizard's bench things just look a bit different from general audience...
i know some of you will bring those crappy bench that try to define how good those amd card compete to nv card but non of them are really neutralized opinion that would probably misguiding general consumer to believe these cheap ass amd card are much better. that is reason why tom's hardware banned tpu's non-neutral fanboi benchmark.
to op: unless you'll be benefit from multi gpu setup i would suggest you go for gtx 580 than go for 6950 cf.
(ops...i forgot tpu is a amd fanbase and i may get my self banned again from this post