Matt Barney has created a pretty nice utility in which the main purpose is to calculate AMD PR ratings for CPU's from the Duron to the A64.
The Quantispeed calculator has full support of Morgan, Palomino, T-Bred, Barton and AMD64 processors, and fully supports overclocked front side bus speeds with unrivalled accuracy for all modes. Added is a CPU stepping decoder which lists all known details about your specific CPU, a full list of stock AMD AthlonXP and Athlon64 settings so you can see how much performance you're gaining from that higher FSB, and a clutter-free small version which can be invoked from the command line or from the main interface
http://download.guru3d.com/pafiledb....&id=5&file=659
http://sunlesscitadel.com/mba/tool2.zip