@Troels_E
Good question!!! I actually think the G3 will be the fastest in some cases. When the G4 cache(256K) has been filled, and the G4 needs to page the slow SD-Ram, things will definitely slow down. The G3(512K) will still be running at full speed, with no wait-states because it's still adressing within the cache mem.
The whole RAM interface on the A1, is a bit of a mystery so far, until further hardware details emerges from Eyetech.
The RAM interface is my only complaint regarding the A1 hardware design. The use of registered RAM is expensive and slow, and it shouldn't be nescesary on a desktop. The register part of the RAM steals 1 clockcycle, and depending on the BIOS latency setup, the access will be slowed with at least 2 clockcycles, when set to lantency 2(CL2). If things are really bad, latency 3(CL3) will be used, so the register and CL3 will produce 4 wait-states... :-(
!8O)
/SpaceMan