What Apple is up against...
G5 or not this is what Apple's competition is coming up with at the end of this year, and certainly in time for MW San Fransisco.
16 DDR SDRAM memory sockets, 8 for each processor with NUMA
128-bit DDR SDRAM memory interface with PC 2700
starting at 2 Ghz and up with 25 percent higher IPC than current Athlons and 64 bit memory adressing.