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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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3 Answers 3

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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)
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Thanks. Is resolution and display size are the only factor depends on how good? So a MacBook Pro 15" 1440x900 should look the same as 15" 1440x800 laptop? But why for some reason MacBook Pro always look better, picture seems finer/sharper? –  michael Apr 16 '10 at 20:35

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.

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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.

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I don't use Macs, but thankfully you and @warrenkopp posted more direct methods of finding the screen resolution –  sblair Apr 16 '10 at 1:23

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