How much faster is a 13" rMBP than a 13" MBA?

Discussion in 'MacBook Pro' started by TrollToddington, Jun 19, 2013.

  1. TrollToddington macrumors 6502

    Joined:
    Feb 27, 2011
    #1
    Hi gals and guys,

    As we already know, the new Haswell MBA, which features the new 1.3GHz processor, is already out. One of the most popular benchmarks (geekbench) show that processor is only 10% slower than the 2.5GHz i5 found in the 13" rMBP.

    I presume that little difference is due to the maximum turbo boost of both processors. However, I do think there must be situations where the MBA and MBP won't be able to turbo boost so they will have to resort to their base frequencies and in those cases the MBP should be around twice faster. I also presume if one doesn't force their macbook into such a situation, the difference in processor speed between both computers is negligible and choosing a MBP over a MBA solely because of processor speed is not so smart in this case.

    My question is what situation can force the processor inside MBA and MBP into a situation where it won't be able to turbo boost? Games, lengthy video encoding, or? How faster is the MBP in such situation? Are there any benchmarks that can prove this? It's very hard to believe an i5 1.3GHz processor can always be just 10% slower than a 1 generation older i5 2.5GHz one.

    Regards,
    Yours harmless internet troll
     
  2. pnyc macrumors 6502

    Joined:
    May 12, 2007
    Location:
    Brooklyn, NY
    #2
    I just took a quick look at some geekbench scores, I might be looking at wrong results or something but for the most part I see scores around 6000 for the MacBookAir6,2 Intel Core i5-4250U 1300Mhz and around 7500 for the MacBook Pro (13-inch Mid 2012) Intel Core i5-3210M 2500Mhz, so it looks like the difference between these two models is more around 20-25%. Are these the same models you're looking at?
     
  3. B... macrumors 68000

    B...

    Joined:
    Mar 7, 2013
    #3
    At 64 bit, the 2013 Air is 6600 and the rPro is 7200.
     
  4. TrollToddington thread starter macrumors 6502

    Joined:
    Feb 27, 2011
    #4
    From http://browser.primatelabs.com/mac-benchmarks

    MacBook Pro (13-inch Retina) Intel Core i5-3210M 2500 MHz (2 cores) - 6616
    MacBook Air (13-inch Mid 2013) Intel Core i5-4250U 1300 MHz (2 cores) - 5940

    So it seem the difference is only 10%

    Edit
    And by the way the difference in 13" retina i7 @2.9GHz and haswell MBA i7 @1.7GHz is even more ridiculous - 7452 for the former, 7298 for the latter. Is it possible that the Haswell processors are that more efficient? I just can't believe it.
     
  5. Dookieman macrumors 6502

    Joined:
    Oct 12, 2009
    #5
    As pointed out the CPU is a bit slower, but the GPU in the new MBA is quite a bit better than the rMBP.
     
  6. bcaslis macrumors 68020

    Joined:
    Mar 11, 2008
  7. Stetrain macrumors 68040

    Joined:
    Feb 6, 2009
    #7
    Most likely the next version of the 13" rMBP will use the new HD 5100 graphics, which are faster than the HD 5000 graphics in the new Air and a lot faster than the HD 4000 graphics in the current 13" rMBP:

    [​IMG]

    The left most bars are the old HD 4000, the middle bars are the HD 5000 like are in the new Air, and the rightmost bars are the HD 5100.
     

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