hey guys, I own an ATI Sapphire Radeon X1300XT, and under the Sapphire website, they have the specs for my card listed as the core clock: 500MHz, and the effective memory clock as: 1000MHZ. Well, my card shows under Rivatuner hardware manager as the effective memory clock as 783 MHz, and when I OC the memory (barely) I can get it to 800MHz, still way below stock. Anyone have any ideas? The card isn't overheating or anything, so I'm confused!!! Please help!