Trying to upgrade from dual 500MHz to single processor

Question 1
My Mac G4 GE has a dual 500 Mhz processor installed. Is it possible to upgrade to a 7447, 7448 or 7455 single processor or do I have to stay with a dual processor for my G4 to work?
Question #2
Can you tell me when the upgrade will not help anymore since my G4 has a 100Mhz Bus or maybe any other hardware that will limit the processor up to a certain speed?
Thank you guys

Hi-
Is it possible to upgrade to a 7447, 7448 or 7455 single processor
Yes.
do I have to stay with a dual processor for my G4 to work?
No.
maybe any other hardware that will limit the processor up to a certain speed?
The processor will run at stated speed.
Any hardware that is faster or more powerful than the component being replaced will enhance performance.
Can you tell me when the upgrade will not help anymore since my G4 has a 100Mh
RAM is the only thing that will not be upgradeable, as far as speed. Larger capacity is no problem, and will help performance.
Of course, all upgrades are relative to the bus speed and throughput on the bus. As compared to a faster system, the performance won't be as high overall.
But, this is comparing apples to oranges......

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