IBook compared to PowerBook compared to iMac compared to G5

Hello
Just thought i would share my tests. Using logic express, the aim is to open as much Guitar Amp (the express one, not the pro one) and not getting the "Core Audio overload" message.
I tried on my girlfriend's ibook, on my current powerbook, an iMac at apple expo and a G5 i owned before selling it for a powerbook.
12" iBook 1.33ghz bus 133mhz 512mb ram = 13 guitar amps
15" PowerBook 1.5ghz bus 167mhz 1.5gb ram = 14 guitar amps
17" iMac G5 2 ghz bus (?) 2gb ram = 24 guitar amps
PowerMac G5 2 X 2 ghz bus (?) 2.5 gb ram = 48 guitar amps
it gives you a rough idea of the performance to expect. don't know about the new G5 though.
bontempi

Hi!
Interesting test results.
At least it shows how incompetitive the PowerBooks are.
(Even the new ones that came today)
Your test pb even has three times more memory than the iBook.
The difference between the iMac and the PM is also interesting.
I never thought a dual machine would be twice as fast as a single cpu.
(I think bus speeds are 600/700 and 900/1000)
But, of course this is an isolated-non real life- test. If you did a test with Space designer, Sculpture or Ultrabeat you may get a different picture.
BTW, were all four computers set to same audio buffer?
I mean if the the iBook was to buffer 1024 and the PB to buffer 128,
that could explain the non existing difference.
JanD

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Message was edited by: Mark Thornton
Message was edited by: Mark Thornton

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