According to the review of the mem, it seemed to perform better at the lower speed tighter timings. So i agree 800is faster AT THIS POINT IN TIME!
EVGA nForce 680i SLI board, XFX GeForce 7950GT@641/1244, Corsair XMS2 2GB DDR2 800 TWIN2X2048-6400C4 (4-4-4-12) 2.1v, Core 2 Duo E6400 (3.0ghz) at 56c max stock cooling, 2 Seagate Barracuda sata 3.0gb 320gb not raid yet and 550watts
old board at 3.2 stock videocard settings / new board at 3.0 oc video card / 3.2 & oc video card
3dmark 2003 score= 22851 / 25262 / 25767
3dmark 2005 score= 10220 / 11764 / not yet