Mac OS X 10.4.8 tuned for Intel's Core 2 Duo Processors

Apple's press release on the new Core 2 Duo MacBook Pros contains the following statement:

Apple has enhanced Mac OS® X to take advantage of the technology advances from Intel's Core 2 Duo processors, resulting in increased performance in professional applications like Aperture™ 1.5, Final Cut Pro® 5 and Logic Pro 7.

The new MacBook Pros ship with Mac OS X 10.4.8 but it is unclear if it is the same build as released as Mac OS X 10.4.8 at the end of September or a special build.

Our speed tests of Mac OS X 10.4.8 on our 24" iMac Core 2 Duo, which did not use Aperture 1.5, Final Cut Pro 5 or Logic Pro 7, showed a significant speed up on the Altivec Fractal and Xbench OpenGL graphics tests but no others. [Bill Fox]

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