@whabang
The lack of L2-cache on the PPC, and the 68k tripping it's feet once in a while are certainly not performance-booster.
And you still got some parts of the GFX-system running on 68k.
Bout PCI, the GRex SHOULD give the same bandwidth as PCI on a Pentium1/2, but the other solution are bound in via Z3 or some hacked up Z2 (the Z4-mediator and the ones on the trapdoor-slot).
