> I thought that the first numbers were for the X5000, and second numbers were
> for the 2.3GHz G5 [...]?

No, the G5 is, as I wrote, scaled to 1.00. To quote from my benchmark posting which in turn quotes from my January benchmark posting (with Mac mini G4 back then, updated results) that already used the same scheme:

"The following list shows the performance of your 2.0 GHz X5000/Cyrus/P5020 compared to my 1.5 GHz Mac mini/MPC7447A (=1.00) at the leftmost position, then the scaled per-clock performance comparison, and the name of the specific test at last position."