Power Macintosh: Bus Speeds

Discussion in 'MacBytes.com News Discussion' started by MacBytes, Jan 8, 2004.

  1. macrumors bot

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    #1
  2. macrumors 603

    Dont Hurt Me

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    #2
    I wonder why they didnt include the G5's bus speed? i guess it would have really made all those G4s look really bad.
     
  3. macrumors 6502a

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    #3
    No, its because that document was last updated on Feb 2003.
     
  4. Moderator emeritus

    Mr. Anderson

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    #4
    But its a bit of an eye opener - nothing over 167 MHz..... scary to think what would have happened if the G5 hadn't come along....:(

    D
     
  5. macrumors 6502a

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    #5
    ...but the G5 did come along
     
  6. Moderator emeritus

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    The only above average bus speed in the whole document was the original Wallstreet PowerBook G3 series. The upper two models had 83 MHz bus speeds--a first for a laptop computer. That only lasted about 6 months when they went to a more conventional (read cheaper) 66 MHz and upped the backside cache.
     
  7. macrumors 68040

    killmoms

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    The G5's bus speed wouldn't look THAT ridiculous compared to the other ones. Unlike all the marketing tripe, the bus speed on the G5 isn't physically 1GHz. It's AT MOST 500MHz double-pumped, but even that is FAR ahead of any other computer anywhere. Most likely it's a 250MHz front side bus, that with dual-channel DDR (which theoretically should quadruple effective speed) can be referred to as 1GHz (quad-pumped). Much like the Pentium 4 boards that ran RDRAM at the beginning of its reign didn't REALLY have 400MHz front side buses; they were merely 100MHz FSB's that were quad-pumped, and creative marketing allowed them to get away with calling it 400MHz.

    --Cless
     
  8. macrumors 6502a

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    #8
    I take it you have stuck a scope on the G5 bus to verify your statement? ;)
     
  9. macrumors 603

    Dont Hurt Me

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    smoke and mirrors say what you want cless but the G5 can move data through the bus at 1ghz, it doesnt matter how its done the fact is its being done. now look at those G4's. so G5's are 800, 900 1000
    G4's 133 & 167 how long have they been that way? anyway you look at it G4 is dated. good for a portable but when selling desktop computers its almost obsolete. G5's bus is 6 times that of a G4.
     
  10. macrumors 604

    MacsRgr8

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    #10
    Mojave G3 FSB will fit in between nicely, though. :)

    Maybe still in line for a cheap iMac or eMac? (must NOT be marketed as G3 ofcourse.. that sounds so old)
     

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