Quote Originally Posted by Manicdan View Post
even if a 6970 is at 900mhz, the 6990 can be 600mhz if they need to be. and you want it to be so you can just turn it up to 900mhz when u get one
Definitely. But such a low clock would make the stock card's performance suffer incredibly (to the point that it's only slightly faster than the single card), and on paper you would be buying a $700 card that's not really faster than a $400 card.

Sites do reviews on stock cards and do not really focus hugely on overclocking results. And I doubt they would do any differently for such a card. They will never be saying "Well we upped the voltage by X volts and the clocks by Y MHz (which would also depend from site to site and would clog the internet with hugely varying results) and conducted the review with the overclocked card, because we really do expect all consumers to up the voltages and the clock".