L3 Cache on new PowerBooks

Discussion in 'Macintosh Computers' started by ColoJohnBoy, Sep 20, 2003.

  1. ColoJohnBoy
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    macrumors 65816


    Mar 10, 2003
    Denver, Colorado
    This is an excerpt from an e-mail sent to Apple Employees as to guidelines for answering customer questions.

    Why No Level 3 Cache?

    The PowerBook G4 (17-inch 1.33GHz) has a faster processor and more level 2 cache than the PowerBook G4 (17-inch). The PowerBook G4 (17-inch 1.33GHz) level 2 cache runs at the same speed as the processor.

    The level 3 cache in the PowerBook G4 (17-inch) ran at a much slower rate than the processor. In testing, the PowerBook G4 (17-inch 1.33GHz) processor and cache design runs faster than the PowerBook G4 (17-inch). There is no longer need for level 3 cache.

    Hope this answers some questions!

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