Difference between the Quad i5 and Quad i7

Discussion in 'iMac' started by FrankySavvy, May 3, 2011.

  1. FrankySavvy macrumors 65816

    Mar 4, 2010
    Long Island, NY
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    Okay some I am debating buying a new 27 iMac 3.1 ghz core i5 model....my question is, in respect to the quad core i5 and i7 sandy bridge processors, are the only differences in the clock speed?

    And are these the same sandy bridge quad core processors in the new MBP's?

    By the way I am a Graphic Designer would I really benefit from the i7 BTO option for the 27?
  2. simsaladimbamba

    Nov 28, 2010
  3. CaptainChunk macrumors 68020


    Apr 16, 2008
    Phoenix, AZ
    The iMacs use desktop SB processors instead of mobile.

    The SB i7s support HyperThreading, while the SB i5s do not. So, it's 8 logical cores versus 4.
  4. henrikrox macrumors 65816


    Feb 3, 2010
    You wont have 8 logical cores no, thats a typo.

    4 physical cores, 4 logical

    Also you have a bigger cache on the i7, and a higher turbo boost.

    However the difference is small if you dont do cpu intensive work, encoding and stuff like that.

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