2.2 vs 2.4 Quad Core i7

Discussion in 'MacBook Pro' started by 273888, Nov 7, 2011.

  1. 273888 Suspended

    Jan 27, 2009
    I recently had my laptop stolen from work (an old 2.4 ghz Core 2 Duo) and am going to be buying a new MacBook Pro with the insurance money.

    Does anyone have a comparison of the two versions of the 15"? I can't find them anywhere. I'm talking about the late 2011 ones that were just updated about two weeks ago.

    I just can't decide if I should throw down another 200 dollars for the one with higher specs.

    Thanks in advance.
  2. HarryPot macrumors 6502a

    Sep 5, 2009
    You need to tell us what are you planning to do with the Mac.

    I wouldn't give the 0.2 GHz much importance. What I would give more importance is to the extra 512mb in video memory.
  3. 273888 thread starter Suspended

    Jan 27, 2009
    I work with a lot of Photoshop and Illustrator at work, and I do a game quite a bit in my free time. I just don't know how much better the processor and graphics card is compared to the lower end model.

    Benchmarks anyone?
  4. yauzers619 macrumors member

    May 22, 2011
    Go with the 2.4Ghz. The 6770M will get you a few more FPS over the 2.2Ghz's 6750M. But most important is the 1GB of VRAM.

    If you are looking to save a buck consider the last gen 2.2Ghz or last gen 2.3 which has a 6750M with a 1GB of VRAM
  5. w00t951 macrumors 68000


    Jan 6, 2009
    Pittsburgh, PA
    The 6770M has about 80% better memory processing power and 15-20% better pixel pushing power than the 1GB 6750M.

    The 0.2 GHz isn't the big thing between the two processors. Usually, there's a difference in bus speeds and L2/L3 cache.
  6. daftpunkstu macrumors member

    Oct 17, 2011
    if you're a gamer then the doubled VRAM will be a huge benefit and will help slightly in PS/illus
  7. Icy1007 macrumors 65816


    Feb 26, 2011
    Cleveland, OH
    Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)

    I'm sorry, but the 6770M is a very marginal "upgrade" over the 6750M. The difference would not be noticeable.
  8. thundersteele macrumors 68030

    Oct 19, 2011
  9. escogido macrumors member

    Jun 10, 2011
    I agree, where are you getting this 80%? or the 15-20%?
  10. JronMasteR macrumors 6502


    May 4, 2011
    ^That is true. The recommended memory clock (by AMD) is for both cards the same, 900MHz. Apple underclocks their cards anyway. In case of the 6750m they underclocked it to 794Mhz.


    On notebookcheck.com the memory clock of the 6770m is listed as 1600Mhz. On Wikipedia it is listed as 900Mhz, which is the same as the 6750m. Notebookcheck.com must be wrong, because even the 6970m has only 900Mhz.
  11. MagicBoy macrumors 68040


    May 28, 2006
    Manchester, UK
    My guess is notebookcheck.net. They've got the 6770M sporting 1600MHz memory vs the 6750M at 900MHz. It appears to be an error as AMD themselves specify the entire range at 800-900MHZ range. The main difference is the 600 vs 725MHz core clock assuming that Apple are running them at full speed. Some older ATIs were underclocked to keep the heat down.

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