I just got a retail box built by ati 9800 pro and the core clock only goes to about 410 without seeing any artifacts. According to a lot of the reviews i read it seems i've gotten very unlucky with the overclocking potential of my card as some of them got as high as 480 with most hovering around 440-450. I was just curious how other peoples' cores were oc'ing. The artifacts are very subtle though and i only seem to see them in the chimp demo and only in certain spots. I feel like these artifacts could be easily missed by someone reviewing a card. On the up side the memory goes up to 370.