GPU on MacBook Air down-clocked?

Discussion in 'MacBook Air' started by barefeats, Oct 25, 2010.

  1. barefeats macrumors 65816


    Jul 6, 2000
    I ran some GPU benchmarks between the MacBook Air 11" and MacBook Pro 13". Both have the GeForce 320M integrated GPU but the MacBook Pro runs the OpenCL and OpenGL benchmarks from 14% to 43% faster.

    Though the 13" MBP is running at 2.4GHz and the 11" MBA is running at 1.4GHz, these are pure GPU tests (SmallLux OpenCL benchmark and OpenGL Extensions Viewer).

    Both are connected to a power source so there should be no down-clocking going on to save the battery.

  2. dccorona macrumors 68020


    Jun 12, 2008
    no matter how much of a "pure" gpu test it is, other hardware factors will affect the performance
  3. apparatchik macrumors member

    Mar 6, 2008
    I find even more interesting, from checking the macworld benchmarks, that there seems to be performance differences between the 11.6 and 13.3 mba in gpu specific tests... the 11.6 gpu may very well be downclocked... the 13.3 mba surpassed the 13" mbp in said benchmarks... supposedly all three (11-13 mba, 13" mbp) share the 330M...

    When trying to translate all the benchmark nums into actual expected performance, Im really just wondering If I can expect an equivalent performance from a maxed-out 13 mba to that of the 2.4 13" mbp... guess will have to wait until the bto mba's start arriving...

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