8MB L3 Cache in 2,7MBPr: what are the exact benefits?

Discussion in 'MacBook Pro' started by icanboogie, Jul 3, 2012.

  1. icanboogie macrumors regular


    Nov 12, 2008

    I cannot find any detailed info on how exactly the increased 2mb L3 Cache (as well as the .1 in processor speed) might increase the performance of the new MacBooks. Geekbench etc. show a slide increase in CPU performance but don't say on what the cache has got to do with it.

    I hear many saying that it will be noticeable "in some cpu-intense tasks like video editing" – does anyone know more details about this?

    • will Mountain Lion possibly make different/more use of the L3 Cache?
    • does driving the retina display (constant scaling&rendering) benefit from L3 Cache?

    If anyone has more info on this - that could be really helpful for me in deciding what config to order. Thx!
  2. BB.King macrumors regular

    Jun 29, 2012
    London UK

    CPU cache is used to reduce the delay of fetching data from "slower" RAM, consider RAM runs in nanoseconds, I really don't think you will notice any improvement.

    CPU cache are always full, so Mountain Lion will make no difference, and the display is driven by the graphics card, so again does not use the CPU cache.

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