And the real reviews are out:
Hexus.net:
HEXUS.net
Bottom line: NVIDIA's GeForce GTX 480 could have easily been better, perhaps should have been considering the time of arrival, but we feel that, underscored and handicapped by a paradigm shift in GPU thinking, it retains enough features and visceral ooh la la to be worthy of a £400 price-tag, if not £450.
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after looking at the review, felt that though GTX480 is astronomically faster than HD5870, it's performance got a hit and fell down to HD5870 framerates in DX11 mode of games.
Bad COmpany 2 : 4-9% better performance over HD5870
crysis warhead: -.2 to 14% faster
dirt 2 :
so, is there going to be a price cut on ATI HD5xxx cards, hell yes!
GTX480 is to be priced at $450 and current price of HD5870 is $440.
GTX470 is to be priced at $300-320 and current price of HD5850 is around $330.
am pretty sure that ATI will put HD5870 at $375 approx and HD5850 at $275-$300