display - Relation between screen resolution and refresh-rate

07
2014-07
  • Pandya

    I want to know How Screen-Resolution is related with Screen refresh-rate? Further it's inter-reaction with DPI.

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    macbook - How can I find out the screen resolution and dpi on my mac book pro?
  • michael

    Can you please tell me how can I find out the screen resolution and dpi for the screen on my Macbook Pro? (I got it last year, 2009.)


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  • sblair

    This depends on the model of Macbook Pro (i.e. the screen size - 13.3", 15.4" or 17") you purchased, but the resolution and DPI (or PPI), for the 2009 unibody models, is provided by Wikipedia (here and here).

    However, given the resolution and display size, you can easily calculate the PPI. In summary:

    MacBook Pro 13.3":  1440x900 (127.68 PPI)
MacBook Pro 15.4":  1440x900 (110.27 PPI)
MacBook Pro 15.4":  1680x1050 (128 PPI)
MacBook Pro 17":    1920x1200 (133.19 PPI)
  • jwaddell

    Open the Apple menu at the very top-left of the screen and click on About This Mac. Click on the More Info button, which will open up a window with lots of categories of information. The Graphics/Displays category will tell you your screen resolution.

  • warrenkopp

    Or to view and change the resolution: Open the Apple menu at the very top-left of the screen and click on System Preferences..., then Displays. This will show a list of available resolutions with the current one highlighted.