Using Mirror Displays

Discussion in 'MacBook Pro' started by karohan, Nov 7, 2010.

  1. karohan macrumors 6502

    Jun 25, 2010
    I have a mid-2010 Macbook Pro with the Nvidia 330m. Does using Mirror Displays require any less system resources (such as VRAM) than Dual Displays? I mean it shouldn't right (assuming that you use the same resolution for Mirror and Dual) because there is still content on both screens being written to the VRAM?
  2. mulo macrumors 68020


    Aug 22, 2010
    Behind you
    using mirrored displays will use roughly half the vram as not using mirrored.
  3. karohan thread starter macrumors 6502

    Jun 25, 2010
    Oh really? So using dual displays should be slower than mirror displays? Because I've noticed that using dual displays will have an initial choppiness with using expose/scrolling/etc. and then after a few times of doing Expose or whatever, it'll be get smooth. Of course, as soon as I do something else, and call on Expose again, it'll be jerky at first again.

    Mirrored displays doesn't experience this, it's always smooth just like if I was using the laptop monitor and no external. So I thought something was up.

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