Marketing at his best. This is as good of the woodscrew tentative. " We have a so good 300$ card, we will sell it to you for 549$" ...
If AMD got big bolls with their tahiti cards, nVidia would be in serious trouble. As they got little ones, nVidia feels good right now.
Their middle chip perform better than what AMD can deliver with its big dog chip.
If you blame nVidia, don't forget to blame AMD
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