Architectural difference between PIII and P4?

[Jeff Layton]

Hello,

   Can anyone point me at some URLs that discuss the
acritectural differences between and the PIII and the
P4 (Xeon to be exact)? Please don't say anything about
which is "faster" or that the Athlon is "faster". I'll explain
in a little bit.

TIA,

Jeff Layton