Core 2 users, 64bit performance?

Discussion in 'macOS' started by Papajohn56, Nov 15, 2007.

  1. Papajohn56 macrumors 6502

    Aug 13, 2005
    Have you guys noticed a significant increase in performance in OSX 10.5 with the enhanced 64bit accessing? Thanks guys
  2. surfsnow macrumors newbie

    Nov 1, 2007
    Not confirmed, but I heard that the chip-set for MBP is not 64-bit so even the CPU is 64-bit, there is no 64-bit support on MBP.
    Also as the 3GB memory barrier is caused by the same reason too...
    Please correct me if I am wrong. :confused:

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