can someone with GPU knowlege advise please: Which 1 would be better all round 570 superclocked 1GB nvidia 6950 2GB ATI RADEO
The 570 is the more powerful card, the 6950 is cheaper. If its important to you the 6950 uses quite a bit less power both idle and stressed than the 570. http://www.bit-tech.net/hardware/2010/12/16/ati-radeon-hd-6950-review/6 The charts in this review feature both cards. Its a cost performance question over which you get.