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83TSP

macrumors newbie
Original poster
Nov 7, 2024
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Hello,

I was curious if anyone knew how the viewable area on the iMac 27" compares with the viewable area on the Apple Silicon iMac 24". It looks like the newer iMacs have much smaller nonviewable space and I wanted to see how much of a difference that would be. Any info anyone has would be greatly appreciated. Thanks!
 
What's a "nonviewable space" on an iMac?
I think they may be referring to the bezels (and incorrectly thinking we gain some of the viewing area back due to them being thinner than the ones on the 27" iMac.)

The 24"/27" is referring to the actual display or viewing size. It's not the size of the iMac itself, nor does it include the bezels. A 24" iMac has 3" less viewing area diagonally (or 2.6" horizontally and 1.4" vertically) than a 27" iMac.

In terms of pixels, the 24" iMac "looks like" 2240x1260 by default, and the 27" iMac "looks like" 2560x1440 by default...so a difference of 320x180.
 
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The pixels on a 27" iMac and a 24" iMac are fairly closely the same size. The ratio of their areas can be calculated from their pixel width and height as (5120X2880)/(4480x2520) =1.306. So the viewable area of the 27" is close to 30% bigger.

You could also use a tape measure and get the same result. 30%

In terms of pixels, the 24" iMac "looks like" 2240x1260 by default, and the 27" iMac "looks like" 2560x1440 by default...so a difference of 320x180.
Excuse my rough diagram below. With the 27" being the whole rectangle, and 24" the bottom left rectangle, you have described 320x180 rectangle at the top right as being the difference in area. Don't forget the long rectangles at the top and right - they also are part of the difference in area.
Untitled.png
 
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