Nvidia GPU Technology Conference Coverage
 

Currently, there has not been any mention of clock speeds but after looking at the specs this card will be a monster on specs alone. Whether that holds true is up for speculation until we see Fermi live and in person. No claims have been made as to the gaming performance delivered but during the keynote speech today Jen-Hsun Huang showed that the Fermi architecture will be 8x faster in double precision performance over the GT200. The keynote speech was the highlight of the day as Jen-Hsun Huang spoke about the current and future applications for GPU computing and how it will change the supercomputing landscape.

http://www.overclockersclub.com/reviews/nvidia_gtc/