They're supposed to be 5 - 10 % faster than a comparable PIII. In fact, WinMag used Bryce 4 as one of their benchmark apps and it rendered the same scene about 7% faster, I think it was. This was back in April right after the 1000MHZ systems were introduced. Personally, I've found nothing wrong with my K6-2 and am planning on upgrading to an Athlon and abit board when the funds are available. HTH, John