My questions to you are: Does that really matter? You are doing your job, aren't you? If yes, why bother asking this kind of stuff? I think for most things out there your G3 is more than enough!
I think he is trying to say, it is hard to compare processors. Intel and PowerPc are like comparing apples and oranges. If you computer is getting the job done, then the processor is fast enough.
He could have said that rather than the comments he made, anyways what is "You are doing your job, aren't you? If yes, why bother asking this kind of stuff?" suppose to mean?
Paul, I think some ppl are just suffered of such questions, cause ppl are asking over and over. Don't take it bad!
The point is, that you can't compare it at all. There are many apps, where the pc does better job and many a mac beats the pc with the same or even higher clock easily. The point of powermac and hulkaros is, that as long as your apps are running fine, you made a good choice with your mac and it's "faster than any other pc"!
Or you should rephrase your question like:
"I am using photoshop and I want to know if my G3 800 performs better than let's say a P3 800"
Anyway, to get back to your post, can you be more specific? What benchmarks are you looking at? What applications are you talking about? What exactly are you trying to compare it to?
The G3 is designed to be more power efficient and run cooler. It might mean the compromise of performance. If the comparison was: "which is a better mobile CPU? G3 or P3" then the G3 makes more sense. Performance doesn't always spell out value.
But you want to know about performance. PPC chips tend to be stronger in floating point math than they are at integer math, while Intel chips (without special extensions ie: SSE/SSE2) tend to be the opposite, strong integer weaker FP. The majority of apps out there rely on integer operations in general. It's the multimedia apps for graphics and video/audio that need strong FPU performance. So in theory the PPC platform has the edge here. However, for office applications like spreadsheet and database, Intel chips may be better off. Compiling code relies on integer performance and good branch prediction. PPC has good branch prediction but weaker integer but Intel chips have piss poor branch prediction but good Integer.
At the end of the day, it all comes down to the type of apps you run