The CPU inside 27" iMac?

Discussion in 'iMac' started by ilivelife, Dec 4, 2012.

  1. macrumors member

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    #1
  2. thread starter macrumors member

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    #2
    Really? No one knows???
     
  3. macrumors regular

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    #3
  4. macrumors 6502

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    #4
    Anyone care to guess why the 21.5 i7 has a higher geekbench score than the 27 i7? I'm guessing RAM and/or Fusion Drive in the 21.5?
     
  5. JVo, Dec 4, 2012
    Last edited: Dec 4, 2012

    JVo
    macrumors newbie

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    (Edited/removed)
     
  6. macrumors 68040

    xgman

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    #6
    That 27" score is old and pre-release. We will have to wait and see.
     
  7. macrumors member

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    Oct 26, 2012
    #7
    the cpu in 21.5'' is slightly better than the 27'' 9504 vs 9464(3770s vs 3770)

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    http://www.everymac.com/systems/apple/imac/index-imac.html
     
  8. macrumors 603

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    Oct 14, 2008
    #8
    This is correct.

    It it worth to upgrade? Probably not. What do you have more - time or money? The i7 will save you a few additional minutes per work day (at best).
     
  9. macrumors regular

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    Apr 21, 2010
    #9
    so, what's that about then?

    so, the cost to upgrade the 2.9GHz i5 - 3.1GHz i7 on the 21" is the same as upgrading the 3.2GHz i5 - 3.4GHz i7.

    which means you're upgrading a more expensive processor in the 27" to a cheaper one than in the 21". for the same money.

    didn't spot that one when ordering the better faster processor on the BTO 27...
     
  10. macrumors regular

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    Aug 11, 2012
    #10
    Main difference is i7 comes with hyperthreading, it means you have 4 core but 8 processes (sort of like 4 physical + 4 virtual cores). Final Cut probably make use of that, Photoshop use hypethreading for some operations, so if you use these operations can speed up things a bit.
     
  11. thread starter macrumors member

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    I have the rMBP 2.3 Ghz i7 now. Will the iMac i5 3.2 Ghz be faster? Or is the i7 in my laptop faster? :)
     
  12. macrumors 6502

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    Feb 27, 2010
    #12
    Depends on what you use your machine for. If you're doing video encoding at all, the i7 will actually be faster. In most cases, the rMBP will be faster in all aspects due to the i7 and SSD.

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    Really? Checking Intel's site it looks like they are identical, outside of the 3.1 vs 3.4 initial speeds. Turbo Boost to 3.9, both have 8MB cache, etc. What makes the 3770s speedier?
     
  13. thread starter macrumors member

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    Jul 12, 2012
    #13
    So I should actually stay away from the iMac 27" unless I go for a i7?

    Because I have the rMBP 2.3 i7 with 16 gb ram now and it is quite fast @performance. If I go for the iMac then it should be because it is faster/has greater performance. :)
     

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