(10-16-2016, 10:16 PM)degasus Wrote: That's a wrong assumption we're told here on the forum every day.
log10(3.5 GHz / 0.7 GHz) = log10(5) = 0.7
So about 70% of a magnitude faster. Where is your "magnitudes increase"?
You just have 5 CPU cycles on the host plattform for each PPC cycle. Please keep in mind that the instruction set differs a lot, so 5 cycles aren't that many.
This is just as wrong though, it doesn't take into account micro-architecture differences, memory access speed, cache sizes, etc. Average IPC should likely weigh in these calculations, and I suspect that we're way closer to 1 order of magnitude if it's included.
