well i've never overlocked ANYTHING but i just upgraded to a ATI Radeon X800 Pro and broke my OC cherry lol ... stock 475/900 3dmark03 (1024x768 4xAA 8xAF) score 5966 .... OCed to 510/1100 3dmark03 score 6726 ... i wouldnt have bothered overclocking at all but i read that the X800 Pro is a GREAT card to OC and that the RAM on it is actually clocked back from the factory and is rated at 1000 so i figured i would try it and so far so good