Both cards are using stock clocks with settings on performance in CCC

x1800 xt 6.1 officials.........3876 3d06
x1800 xt 6.2 officials.........4073 3d06

same clocks same performance settings....with a single core 3700+ @ 2.5 gig

x1900 xt 6.2 beta's.........5935 3d06
x1900 xt 6.2 officials.......5937 3d06

same clocks same performance settings....with a dual core x2 3800 @ 3.0 gig

I deleted my score with the drivers that came on disk with the vidcard but i think the x1900xt scored 5663 with them at same settings.