I just bought a retail ATI Radeon 9700 PRO from Best Buy. I got it up to 400 core/720 mem. If I take the core higher, my 3dMark2001 score actually goes down, and if I take the memory higher I get artifacts. Not that I am complaining. I was very surprised to get such a good overclock on a card with the standard ATI heatsink and no heatsinks at all on the memory!