MacBook Pro 2.53Ghz i5 vs iMac 2.66Ghz i5

Discussion in 'MacBook Pro' started by thiagos, Oct 16, 2010.

  1. thiagos macrumors 6502


    Dec 20, 2007
    NYC (Manhattan)
    Hi guys,

    I know this might seem like a stupid question, but it really has me wondering. What is the difference between the i5 processor on the MacBook Pro and the iMac? Are they exactly the same except for the clock speed of .13? If I were to upgrade my MacBook Pro with a 7200RPM HD, would it be the exact same computer?

    The reason why I ask is because I read online that the i5 on the iMac has 4 cores and the i5 on the MacBook Pro only has 2 and that got me confused, why would two different processors be called the same?

  2. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    The i5 in iMac is a desktop CPU (Lynnfield). It has four cores but not Hyper-Threading (so only four threads).

    The i5 in MBP is a mobile CPU (Arrandale). It has two physical cores but due to Hyper-Threading, it has four threads.

    Both support Turbo. iMac is still faster though.

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