Well if your read the actual post you would see that the client
DOES have altivec-support, and such benches are really good for
altivec.
There is no way a G4/800 could beat a P4/2600 in integer or single
data float.
And the 3rd-level-cache on the G4 is only needed because it
doesn't have any other posibility to use modern DDR-RAM, which
comes naturally for todays x86s.