I upgraded from 3.24 to 3.25 beta today, and with a midly overclocked Athlon XP (approximately 1660MHz), the time per frame of the WU I was crunching went from about 30 mins / frame to just over 11 mins / frame. Quite an amazing improvement! The more experienced Folders probably already know this, but for the benefit of those who don't I'm posting this. If your AMD Athlon supports SSE (such as a Thoroughbred or Barton), be sure to run the new client with the -forceasm switch for maximum performance. 😎