DUH! News of the Day: GTX 470 specs aren't final
 

Nvidia partners are happily playing with Fermi-based GTX 470 already, but Nvidia is still holding back the final specifications. The card will most probably be at Cebit, and hopefully Nvidia will give the final specs to partners by then. After couple of inquiries we found out that even though you can get estimated performance figures based on what partners are looking at right now, these are still not final as Nvidia is yet to give out a word about the final clocks of the GTX 470. The safest guess is that it will be around 20 to 25 percent faster than the Geforce GTX 285, which puts it somewhere between the HD 5850 and the HD 5870.

http://www.fudzilla.com/content/view/17851/34/