XBOX 2 to contain THREE 3.5Ghz 64bit PPC's

[downix]

@ksk

I have the Jaguar's schematics, it does have 2 64-bit units ,the Blitter and Object Processor(their version of the copper).  The Jaguar had no less than 5 processing units, a 32-bit GPU, a 32-bit DSP, a 64-bit Blitter, the 64-bit Object Processor and a 68000 "for legacy compatibility".  Before you wonder "what legacy" you have to remember, the Jaguar was to be a follow-on to the Atari Panther, which Atari killed in favor of releasing the Jaguar sooner than it would have otherwise.  Explains why the Jaguar's support stunk, as they did not have time to develop the developers environment properly.  Also explains why the Jaguar was "downgraded" to pure cartridge with an upgrade to CD-ROM later when it was originally to be a pure CD-ROM unit with a Cart for "legacy-support" of Panther games.

The Nintendo 64's main CPU was the 64-bit MIPS R4310 CPU.

[downix]

@ksk

If you want to be technical, the N64 was as much 64-bit as the Jaguar.  Only 1 element of each machine was 64-bit.  With the Atari, it was the Blitter and Object Processor.  With the Nintendo, it was the CPU-core.  Combine the two, then you'd have had a true 64-bit machine.  (Ironically, Atari produced Co-Jag arcade machines with a MIPS CPU, would have been more than possible to combine the 64-bit chipset of the Jag with the 64-bit CPU of the N64.  That would have been a nice beast)

In the end, the bit-depth in both machines cases is more a case of marketing hype than real-world capability.