Although it's a strange coincidence that rumours from different sources are pointing to a gtx 570ish performance and benchmarkreviews has even an article that it will compete with the gtx 570.
http://benchmarkreviews.com/index.php?option=com_content&task=view&id=13177&Itemid=8
Considering that amd 6850 matches gtx 460 and amd 6870 catches gtx 470 in many games especially at high resolutions, I would expect that even if they were retaining the barts architecture, the performance of amd 6950 should match or come close to gtx 480 and amd 6970 should match or come close...
I think we should stick to intelligent factual discussion here. not ignoring others' arguments as nitpicking
Ok, Silus does have a point. The cores of barts may not actually perform a lot faster than the cores of cypress. Ok, I may be wrong there. but we definitely see some improvement like...
Well, I don't think we should be comparing cayman cores with cypress cores because that would not be a correct judgment
We know that 1120 VLIW5 SPs of 6870 are 5 percent faster than 1440 VLIW5 SPs of 5850. I would have guessed from that around 1400 SPs on barts architecture would match or...