Atomic and Nevermind,
Thanks for the replies. Actually it's an Athlon II not a Phenom, although they are supposed to be based on the same architecture. I was wondering if the increased Hypertransport and the larger cache had something to do with it. As for the clock speed, even given the fact that's it 500 Mhz faster, the math scores on Performance Test didn't seem to lead to such a dramatic increase in video speed. Next time I'll try to remember to post some results.
Thanks again and take care