wow this thread became crazzy.
Here's my 2 cents on the topic. When 480 was released it was a huge letdown especially considering the time it took Nvidia to come up with the answer to 5xxx series, and the fact that 5970 still owned it. But fanboys were arguing that it's single gpu vs dual gpu which isn't fair. Fine, although I would argue that it doesn't matter how many cores a card will have as long as it priced and considered as the flagman of the company it will be valid to put it agains the opponents solution. So anyway now, in 2011 Nvidia released their dual gpu solution, which is still slower ( yes, yes barely, but atm a victory is a victory no matter how small the difference is) then ATI's soultion. NOW Nvidia fandom has no excuses to say that it's unfair to compair both solutions, and NOW they are pushing for such "important" aspects of the flagman card as ... SIZE, POWER CONSUMPTION and NOISE. Did that matter when gtx 280 was released ? or did that matter when 9800x2 was out ? or when 295 was released? oh wait... they were holding the position of the fastest cards atm, so whenever ATI fanboys were pointing out those flaws in the cards mentioned above, they were discarded for the same reason.
P.S. I'm not an ATI fanboy btw, as I had 480 in SLI ( and actually it was pretty good, after I've played around it optimal air flow to keep them at 70-80c during load).
To W1zzard : what were the clocks on 6990? the 830 or 880?
Oh btw I also think that 1.2v is a bit to much, and it seems that the card can reach 580s clocks with voltages below or at 1.05. But the fact that they released a card with voltage limiter working incorrectly is shameful, as if they never tested it, to see that it actually works.Question is : will it pass OCCT error test....