12" Retina Macbook: 1.1 vs 1.2 vs 1.3 GHz Discrepancy

Discussion in 'MacBook' started by amitdoc2b, Mar 10, 2015.

  1. amitdoc2b, Mar 10, 2015
    Last edited: Mar 10, 2015

    amitdoc2b macrumors 6502a

    Joined:
    Feb 25, 2008
    #1
    On the Apple Website it says:

    1.1 GHz --> turbo boosts to 2.4 GHz
    1.2 GHz --> turbo boosts to 2.6 GHz
    1.3 GHz --> turbo boosts to 2.9 GHz

    But I have read on these forums and on websites that the 1.1 Core M processor turbo boosts to 2.6 GHz and the 1.2 Core M Processor turbo boosts to 2.9 GHz. Why is there a discrepancy of information on the Apple website and what forum members and websites are reporting?

    I am trying to see if the upgrade from 1.1 GHz ($1299) to 1.2 GHz ($1599) Core M Processor is worth it when considering you also get double the hard drive space?

    Thanks.
     
  2. Gav2k macrumors G3

    Gav2k

    Joined:
    Jul 24, 2009
    #2
    The discrepancy is occurring because the q414 chips that Apple has got from Intel can have both base and turbo freq set by the vendor. Apple decides what it wants basically. The 1.2 and 1.3Ghz cpu are the same chip
     
  3. fisherking macrumors 601

    fisherking

    Joined:
    Jul 16, 2010
    Location:
    ny somewhere
    #3
    wait a bit, and there will be official information, benchmarks, and real-world usage to make decisions by...
     
  4. amitdoc2b thread starter macrumors 6502a

    Joined:
    Feb 25, 2008
    #4
    I'm confused what you mean by the 1.2 and 1.3 being the same chip? Do you mean they are both Model 5Y71? If that's the case, why would they purposely slow one down and make one faster if they both are the same chip?
     
  5. Gav2k macrumors G3

    Gav2k

    Joined:
    Jul 24, 2009
    #5
    Yes the 1.2/1.3 are both 5y71 there isn't an officially listed 1.3 chip on intels site but the base freq of the 5y71 @1.2 can be changed upto 1.4 so Apple obviously moved it to 1.3.
     
  6. Z3man macrumors 6502a

    Joined:
    Feb 19, 2012
    Location:
    UK
    #6
    Im confused, on the Apples website i can only see 1.1 and 1.2GHz processors, i can't see any mention of a 1.3GHz processor.
     
  7. amitdoc2b thread starter macrumors 6502a

    Joined:
    Feb 25, 2008
    #7
    They offer 1.3GHz as a build-to-order. Go under Tech Specs on their website and look at the configurable options under 1.1GHz and 1.2GHz.
     
  8. Z3man macrumors 6502a

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    Feb 19, 2012
    Location:
    UK
    #8
    Found it thanks.
     
  9. Diversion macrumors 6502a

    Diversion

    Joined:
    Oct 5, 2007
    Location:
    Jacksonville, Florida
    #9
    This was the first thing I noticed too.. Intel Ark lists these chips with different base frequencies.. So I also assumed Apple was able to bump up the base clocks some for the new MacBook.

    Either way, i'm hearing the 5y71 version is quite a bit faster overall than the 2.6ghz one.. I guess that extra 300mhz makes a big difference on the Core M.
     
  10. happyslayer macrumors 6502a

    happyslayer

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    Feb 3, 2008
    Location:
    Glendale, AZ
    #10
    Where are you hearing this? Any links showing comparisons? Thanks.
     
  11. amitdoc2b thread starter macrumors 6502a

    Joined:
    Feb 25, 2008
    #11
    On Apple's website, the 5Y71 is the 2.6GHz version (2.9 on other sites), while the 5Y70 is a 2.3GHz version (2.6 on other sites).
     

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