Laptop chips: 180, 150 or 130nm

Discussion in 'Macintosh Computers' started by manitoubalck, Nov 8, 2003.

  1. macrumors 6502a

    manitoubalck

    Joined:
    Jul 17, 2003
    Location:
    Adelaide, Australia
    #1
    It is well known that the Powerbooks have 512k L2 cache, and the G4 iBook 256k L2 cache. But is that where the differences stop?

    This particular question is relating to the size of the die on which the chips are produced. Are the PB G4 chips produced on a 0.13micron die, while the iBook's are on 0.15 or 0.18 micron die? Or are they both produced on the same size chip.

    Are there any other differences in these chips? Since getting a straight answer out of motorola is like trying to draw blood from a stone.
     
  2. macrumors 68040

    mac15

    Joined:
    Dec 29, 2001
    Location:
    Sydney
    #2
    the smaller the chip the less power it uses and they can crank up the mhz because of this. Which why intels new 3ghz plus chips are 0.9nm
     
  3. thread starter macrumors 6502a

    manitoubalck

    Joined:
    Jul 17, 2003
    Location:
    Adelaide, Australia
    #3
    I know, but that relates to my question how? I'm just curious about the G4 laptop chips in this case.

    And the intel chips aren't on 90nm cores yet anyway. That is what the Prescott core is rumored to be.
     
  4. macrumors 601

    ftaok

    Joined:
    Jan 23, 2002
    Location:
    East Coast
    #4
    Re: Laptop chips: 180, 150 or 130nm

    It's not Motorola that isn't disclosing information. It's not Motorola's place to disclose information about their customer's purchases.

    Anyways, the G4's used in the newest Powerbooks are the 7447/57. These are Moto's latest G4's and are produced with the 13 micron process. Previous generations of Powerbooks used the 7445/55 and used an 18 micron process. The G4 iBook are using the 7445/55 chip.
     
  5. thread starter macrumors 6502a

    manitoubalck

    Joined:
    Jul 17, 2003
    Location:
    Adelaide, Australia
    #5
    Thankyou for clearing that up.

    any other differences that people know about?
     
  6. macrumors 6502

    Joined:
    Jan 7, 2003
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    Toekeeyoe, Japan
    #6
  7. macrumors 6502a

    Joined:
    Mar 20, 2003
    #7
    It’s not a rumor, it's a fact, Prescott is 90nm. The G4 in the PB line is .13 and the iBook is .18. The iMac is also still at .18 as is the eMac.
     
  8. ryo
    macrumors newbie

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    Nov 11, 2003
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    Japan
    #8
  9. macrumors 65816

    Joined:
    Aug 20, 2001
    #9
    ryo:

    Wow, it does indeed claim that. Very interesting! If the iBook is using 130nm 7445's that makes it much more attractive.
     

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