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G3 vs. G4
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Fresh-Faced Recruit
Join Date: May 2003
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Hello.
In a percentage amount, how much faster would you say a Powerbook G4 processor is than a G3 iBook processor?
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Mac Elite
Join Date: May 2001
Location: Earth
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0% for daily use. 900mhz iBook may even be faster than 867mhz PB 12". The only significant difference would be in Photoshop or audio/video encoding/decoding.
(Last edited by pat++; May 10, 2003 at 10:07 AM.
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Forum Regular
Join Date: Oct 2002
Location: Atlanta
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Are you sure about this? Aren't core components of Mac OS X Altivec-optimized? This would make everyday usage snappier on a G4. However, I upgraded (or downgraded, depending on your preference) to an iBook 700 from a PowerBook DVI 667 and I don't really see any overall speed difference. iTunes importing is a lot slower on the iBook though. With my PowerBook I could easily attain 10x speed but with my iBook I haven't seen speeds over 6x.
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Mac Elite
Join Date: May 2001
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Originally posted by leffo:
Are you sure about this? Aren't core components of Mac OS X Altivec-optimized? This would make everyday usage snappier on a G4. However, I upgraded (or downgraded, depending on your preference) to an iBook 700 from a PowerBook DVI 667 and I don't really see any overall speed difference. iTunes importing is a lot slower on the iBook though. With my PowerBook I could easily attain 10x speed but with my iBook I haven't seen speeds over 6x.
I don't think altivec makes that much difference for core OS components (except Quicktime). Quartz Extreme makes a much bigger difference, and both iBooks and PowerBooks now support QE. That's why you won't notice any difference between them... and G3 has a 512k cache running at full processor speed vs 256k (half-speed?) for the G4.
(Last edited by pat++; May 10, 2003 at 10:29 AM.
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Addicted to MacNN
Join Date: Jun 1999
Location: Las Vegas, NV, USA
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I agree with Pat++
I got to use my friend's 550MHz TiBook the other day. It was dog slow compared to my 700MHz iBook.
I think the graphics chip has a larger influence on perceived speed becaue of Quartz Extreme than the CPU.
Chris
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Professional Poster
Join Date: Jan 2002
Location: Rochester, NY
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Well, not a very fair comparison but my PowerBook G4 1 GHz (with 1 MB L3 cache) and 768 MB RAM whoops the iBook 900 MHz with 640 MB RAM butt in everything. There a major slow down with the PowerBook, but always one with the iBook (for what I use it for). I could not stand going from what I have now to using an iBook full time.
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Addicted to MacNN
Join Date: Oct 2002
Location: England | San Francisco
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Originally posted by Cykon:
Hello.
In a percentage amount, how much faster would you say a Powerbook G4 processor is than a G3 iBook processor?
Depends which model, the 12" will most likely not be that much faster whereas the 15" and 17" both have L3 Cache = a lot more speed.
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we don't have time to stop for gas
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