Re: [Kitguru] - GTX485 Launch: Less hot and noisy in the sack?
I highly doubt this news is accurate. If they can only get a 20mhz gain it would make more sense to just keep the current GTX 480 and make it a revision so they can get better yields. It's quite unlikely they will be able to simply turn on the other SPs, so it still won't be what "Fermi should have been at launch".
If they can improve the card that's great, but I think Nvidia would much rather do it silently otherwise they'll have a big pile of GTX 480s they wouldn't be able to sell.