The resolution (in pixels by pixels) of your Mac screen determines how much information can fit on the screen and how sharp the image is, so it is essential to know. If you are running a game or application in full screen with native resolution, the image will look better, therefore here we show you how to find out what it is.
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First, click the Apple icon in the upper-left corner of the screen and select “Regarding this Mac”.
In the pop-up window, click on the tab “Screens”.
On the next screen, you will see information on the screen (or screens) that you have embedded or connected to your Mac.
The screen resolution is the set of numbers that appear in parentheses right after the screen size. As an example, the list here says “27 inches (2560 x 1440)”, which means that the Mac in this image has a 27 inches with a resolution of 2560 x 1140 pixels.
(Note that “Regarding this Mac” always displays native resolution (ideal) from the screen, regardless of the resolution settings in System Preferences).
If you have more than one display connected to your Mac, you will see them all in this window. Here is an example. With an external display, you will find your native resolution listed just below your name.
Now that you know the native resolution of your screen, you can use it to run games at the best possible quality, find wallpapers that exactly match your screen and more.
If you need to adjust the resolution settings, In relation to this Mac makes it easy. Just click the button “Display preferences” in this window, and you will be directed directly to “System preferences”, where you can modify the display settings to suit your needs.
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