Processor comparisons?

Discussion in 'MacBook Pro' started by evitica, Feb 28, 2011.

  1. evitica macrumors member

    Joined:
    Aug 25, 2009
    Location:
    New York, NY
    #1
    Hey all,

    I am looking to buy one of the new 15-inch MBPs. I do some video editing and music production. Avid, FCP, Logic, etc. I was wondering if I were to get the 2.0ghz i7, how big of a difference in speed is that to the 2.2 or 2.3ghz i7? Is it a dramatic difference? Are there any actual speed tests with all three?

    If the 2.0ghz adequetly does the job, I'd love to save 500 bucks!

    Hope to hear your thoughths!
     
  2. dusk007 macrumors 68040

    dusk007

    Joined:
    Dec 5, 2009
    #2
    Well 2.2 vs 2.3 is not much of a difference.
    5% more clock speed and a bit more LLC but that often has a negligible effect in most cases. Turbo max is 3.3 and 3.4 which is only 3% difference.

    The 2Ghz is a little more than the 10% apart from 2.2 because the max Turbo of the former is 2.9Ghz and the latter 3.3Ghz. That is 400 Mhz and thus with Turbo the difference increases.
    The 2.2 is IMO justified because of the 6750 more than anything. If gives you almost twice the performance of the 6490 in modern games. 100% is well worth the money if you use it for this.
     
  3. simsaladimbamba

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    Nov 28, 2010
    Location:
    located
  4. AppleMacFinder macrumors 6502a

    AppleMacFinder

    Joined:
    Dec 7, 2009
    #4
    I have done a small research about 2720QM vs 2820QM (2.2 ghz vs 2.3 ghz)
    The other difference is that 2820QM has 8MB of L3 cache, while 2720QM has 6MB.
    The conclusion is that the difference in performance is usually ~5%,
    sometimes goes a bit higher, but never above 10%.
    Considering that 2820QM is almost twice as expensive as 2720QM,
    and the difference is small, I don't recommend this option.
    Know that CPUs cannot be upgraded later, but if, after several years,
    the performance will not be enough for you, you will probably buy the new computer.
     
  5. AppleMacFinder macrumors 6502a

    AppleMacFinder

    Joined:
    Dec 7, 2009
  6. evitica thread starter macrumors member

    Joined:
    Aug 25, 2009
    Location:
    New York, NY
    #6
    Cool thank you all so much. I think the 2.0 is the best bang for the buck.
     
  7. AppleMacFinder macrumors 6502a

    AppleMacFinder

    Joined:
    Dec 7, 2009
    #7
    Don't forget to compare the GPUs (6490M vs 6750M) before your final decision.
     
  8. evitica thread starter macrumors member

    Joined:
    Aug 25, 2009
    Location:
    New York, NY

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