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Thread: New Powerbooks

  1. #1
    New Powerbooks
    gunnerjoe's Avatar
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    Macbook Pro 17" Quad i7, MacMini Quad i7 , 16gb ram on both. IPad 4th Gen. IPhone 4S
    New Powerbooks
    Hi All,

    Just wondering why Apple does not increase the bus speed of the Powerbooks?

    Everyone wants faster processor, well a 1.67 Ghz chip would not be that bad on a fast bus, but not on 167Mhz bus. Talk about hamstringing a system, PB's have all this ultra cool stuff plugged into a bus from 6 years ago.

    Just a thought !

    Joe

  2. #2
    jbsengineer
    Guest
    The fsb isn't a bottleneck...

  3. #3
    Jason
    Guest
    Most PCs had ancient bus speeds up until the last couple years as well. I never saw the point in this. It's like having a 500 horsepower engine inside a barn on wheels!

  4. #4
    New Powerbooks
    gunnerjoe's Avatar
    Member Since
    Dec 24, 2004
    Location
    Albuquerque
    Posts
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    Specs:
    Macbook Pro 17" Quad i7, MacMini Quad i7 , 16gb ram on both. IPad 4th Gen. IPhone 4S
    Please explain your thoughts!


    Quote Originally Posted by jbsengineer
    The fsb isn't a bottleneck...

  5. #5
    jbsengineer
    Guest
    Quote Originally Posted by gunnerjoe
    Please explain your thoughts!
    oops... correction. fsb IS indeed a bottleneck... dont know what i was thinking.... long day at work.

    it is a bottleneck. and i dont know much about the g4 architecture. can someone enlighten me??? but my powerbook with a 167mhz fsb does kick some *** against my other pc's with huge FSB's. my ibook with a 133mhz fsb still kicks....

    btw, intel has obviously overblown there FSB's to the point where it doesn't make even sense. having a fast FSB speed and slow memory is obviously not going to help. AMD has gone in the direction of balancing the FSB and Memory speed and has really done a decent job. for whatever apple is doing with there archtecture it's awesome. do they use more than the data path of just the FSB to communicate between the components? i know the G5 uses bi-directional FSB's which help ALOT...

    Josh

  6. #6
    meltbanana314
    Guest
    Quote Originally Posted by jbsengineer
    oops... correction. fsb IS indeed a bottleneck... dont know what i was thinking.... long day at work.

    it is a bottleneck. and i dont know much about the g4 architecture. can someone enlighten me???
    I think the real bottleneck might be with Freescale, the manufacturer of the G4 series of processors. They don't have the near-unlimited financial resources to make a decent processor for Apple's computers like IBM (the maker of the PowerPC 970) does. Maybe if they had more money, they could push out a better product - but who knows?

    I hope Apple ditches Freescale soon in any case.

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