13" i5 rMBP vs. 13" i7 MBA?

Discussion in 'MacBook Pro' started by gametime10, May 6, 2013.

  1. gametime10 macrumors regular

    Joined:
    Mar 30, 2006
    #1
    I currently have a 13" i5 2012 rMBP, and I have the opportunity to trade this for a 13" i7 2012 MBA (+ a bit of cash). Would the i7 in the MBA perform noticeably better than the i5? Or is it not worth it?
     
  2. yusukeaoki macrumors 68030

    yusukeaoki

    Joined:
    Mar 22, 2011
    Location:
    Tokyo, Japan
    #2
    Well what do you do with your Mac?
    If you do work that needs the CPU power, go ahead and upgrade.
    If not just keep it.
     
  3. leman macrumors 604

    Joined:
    Oct 14, 2008
    #3
    It most certainly won't be noticeably better, in the best case it will be on par with the i5, but most likely, actually slower for CPU-heavy tasks. After all, the MBA uses an ULV CPU with a very constrained thermal envelope (its TDP is 17W compared to the 35W of the i5 in the rMBP). It is much more likely to throttle.
     
  4. Bear macrumors G3

    Joined:
    Jul 23, 2002
    Location:
    Sol III - Terra
    #4
    In addition to what leman said above, the rMBP i5 is 2.5GHz and the MBA i7 is 2.0GGz. In this case even if you had an application that made full use of the hyperthreading of the i7, the performance might not be better. And with most if not all of the applications you'll probably be running, the 2.5GHZ i5 will be better.
     
  5. gametime10 thread starter macrumors regular

    Joined:
    Mar 30, 2006
  6. leman macrumors 604

    Joined:
    Oct 14, 2008
    #6
    They both have hyper-threading - 2 physical and 4 logical cores. The only difference is that the i7 model has more L3 cache and slightly higher maximal clock. Which again is offset by its much lower TDP.
     
  7. fskywalker macrumors 65816

    fskywalker

    Joined:
    Nov 6, 2009
    #7
    What configuration has the MBA? Noticed you have a 512GB SSD, that is available on the MBA, but not that common; if it has a smaller drive, evaluate if it would work for you. What about the memory on yours? on the MBA?
     
  8. gametime10 thread starter macrumors regular

    Joined:
    Mar 30, 2006
    #8
    Both would have identical specs, besides the CPU (512gb SSD, 8gb SDRAM).
     
  9. fskywalker macrumors 65816

    fskywalker

    Joined:
    Nov 6, 2009
    #9
    My wife has a mid 2012 MBA (4GB, 256GB) and is a very nice machine based on its size, but dont't think it is in the same leage as the rMBP. How big is the cash back?
     

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