Well that depends on what you mean. NO the G5 will never be able to run with the old chip sets, the bus interface won't allow it. Yes the G5 can be implemented with the current technology at a lower power level.
To get to a lower power level some of the things that can be done are:
1. Can the bus interface multiplier. Instead of 1:2 make it 1:3 or 1:4. A 1:3 bus would 400 MHz for a 1.2 GHz machine, this would still be a rather large leap in performance over current hardware but would reduce power used by the system.
2. Us a completely new chip set that is slower, as above, and more limited in scope. The possibility here would be to elimanate a memory channel and maybe go directly to PCI for the I/O bus. Agian a performance limiter but still an improvement over the current machines.
The lower clock rate would help with power but may have a dramtic impact on certian applications. The 970 needs the clock rate to compete against the G4's vector unit. So if one where to use a bus rate of say 533MHz, to compete with intels low end, then we could get and IMac running at 1.6GHz with a 3X multiplier, save a little power and get reasonably good performance.
Knowing Apple though they probally will milk the G4 for the holiday season and then upgrade the machine in the new year.
What is most interesting is what are they doing with the 1.6GHz G5? It would be nice if they brought it up to the same level as the rest of the fmaily.
Originally posted by gramsciSee the latter part of my post!
On the serious (but slightly fantasy inhabiting) side...
Would it be possible to add a G5 to the current design without the other motherboard improvments that the powermacs have? This may reduce the heat. Would the lower clock speed help this?