Originally posted by: squidman
Those PIII's with e index are 100mhz. Those with e and b are 133. As far as i know, there werent any PIII b.
i believe p3 b are katmais (512k half speed) with 133 bus speed.
p3 e are coppermines with 100 bus
p3 eb are coppermines with 133 bus.
p3 s are tualatins with 512k cache instead of 256.
source: upgrading and repairing pcs