Not even close! It's not 50% faster than HD6970. Look at the overall benchmarks in the lastest demanding games: it's only 36% faster at 1920x1080 4AA and just 26% faster at 1920x1080 8AA than HD6970.
Look again. And that's with a review that really tests the most demanding games under the sun out today: Witcher 2, Dragon Age 2, Metro 2033, Crysis 2, BF3, Hard Reset, Serious Sam 3, etc.
Unfortunately, my enthusiasm was premature. I read other reviews and this card doesn't do well enough at 2560x1600, especially once you add on AA. For people like you who wanted a huge performance boost on 30 inch monitors, you'll need to wait for a HD7970 with 1100+ mhz stock clocks or for drivers to improve at least 15%.
In regards to people who really wanted more performance, 2560x1600 users, this videocard upgrade from GTX580 is going to take them from
unplayable to unplayble category in pretty much all the games that actually needed more performance.
Too slow.
Too slow, almost a slideshow.
Only 30% faster with AA.
Slideshow.
Too slow.
Almost 50% faster with AA, but still not even 45 fps. Decent, not great.
Too slow.
Obviously at $550, it's a better buy than a GTX580, but I don't think the performance increase is anything spectacular for those people who actually needed it (and that means 2560x1600 and above users, not 1080P users). AMD is going to need to refresh this card one more time to compete with GTX680.