It's not really six of one and half a dozen of the other though is it
The 480 is quicker by quite a bit than the 6950 according to the anandtech bench results
you've posted.
And although the 6970 is closer to the 480 the Nvidia card still has a few titles (BattleForge, Hawx and Dirt 2) that it runs away with whilst remaining fairly close on the rest of the games.
The Gigabyte SOC that's on special offer
is cooler and quieter than a reference 6970.
The 6970 uses quite a bit more than half the power of the 480 which can also be seen in the Anandtech results you've posted!
You also have to add in the fact that Nvidia drivers at the moment are pretty solid (barring of course the nightmare 590 release),
whereas AMDs driver team are still trying to iron out too many issues for my liking.
Instead of trying to rush out a monthly update they should concentrate on releasing a properly fixed driver and forget about time restraints.
At least try to give the OP some unbiased facts please. Fortunately the benchmarks you posted tell the correct story and not the red tinted one you're trying to sell
To the OP,
this card is by far and away the best bang for buck at the moment IMO.