Is CPU upgrade 2.2-> 2.3 worthy? (250USD/1950HKD)

Discussion in 'MacBook Pro' started by humuslokiy, Feb 24, 2011.

  1. humuslokiy macrumors newbie

    Nov 9, 2010
    Hong Kong, China
    For 17" mbp model....
    Is CPU upgrade 2.2-> 2.3 worthy? (250USD/1950HKD)


    i7 2720QM -> i7 2820QM
    cache: 2MB More
    CPU: 0.1 GHz More per core

    thx for your time for reading this post >v<!!:):):):)
  2. aCondor macrumors 6502

    Oct 20, 2010
    United States
    Depends how intensive your tasks are. But for most people, no. Not worth it.
  3. WardC macrumors 68030


    Oct 17, 2007
    Fort Worth, TX
    The major thing you are getting with the 2.3GHz processor is not the additional 100MHz of clock speed, but the additional 2MB of cache (8MB vs. 6MB), which will offer better performance in certain tasks. This was the main difference in the i5 and the i7, the cache offerings. The top-spec 2.3GHz offering will give you the maximum 8MB of processor cache which might give you an advantage when doing something very intensive such as compressing video or motion 3D animation rendering.
  4. humuslokiy, Feb 24, 2011
    Last edited: Feb 24, 2011

    humuslokiy thread starter macrumors newbie

    Nov 9, 2010
    Hong Kong, China
    I am going to use it to write and compile iOS apps, render 1080p movies, and run VMs.

    Probably involve 3D drawing for writing games.
  5. TMRaven macrumors 68020


    Nov 5, 2009
    Installing a 128gb ssd in it instead and investing in an external hard drive would be the smarter move. Especially considering that they now use thunderbolt, you'll eventually see some externals that use it.
  6. djasterix macrumors 6502a


    Apr 10, 2010
    Paradise City
    Not worth, if you need more speed get an SSD.
  7. m85476585 macrumors 65816

    Feb 26, 2008
    You will probably never notice the extra 2Mb of cache, and the 2.3 is only 4% faster than the 2.2

    So your videos will render 4% faster, or maybe a bit more if the cache increase helps at all, call it 5%. If you have an hour render, is it worth it to save 3 minutes? Probably not. I would save the money for stuff you will need, like bigger or faster disks (maybe a nice LightPeak enclosure for them) or a SSD or more RAM.
  8. lesyork macrumors member

    Jan 31, 2011
    Just fixed that for you ;)
  9. m85476585 macrumors 65816

    Feb 26, 2008
    It just sounds silly calling it that. Thunder doesn't come in bolts.
  10. solarein macrumors regular

    Feb 24, 2010
    Thunderbolt refers to the lightning, i.e. that bolt that you see when you hear thunder.
  11. robmerkle macrumors newbie

    Feb 26, 2011
    Or, the ominous clap of thunder you hear when you see the price tag.

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