I've been setting up my new kr7a w\ AMd 1800+ all day, so I really have not had time yet to really prove this card. Sorry, but I am slow and methodical. MB is excellent, very fast and stable. I'm worn out now, but I did try a small O/c at 200/450 and played a little UT. It was a snap. No problems. As soon as I get some benchmarking apps d/loaded so I can have more control, I'll start benching this beast, and rev up the potential. But, It looks and feels great so far....