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ChrisPowder

macrumors member
Original poster
Apr 22, 2015
37
2
Hi everyone

Just received my new MacBook yesterday, very pleased :)

I'm not particularly computer savvy and am a bit confused about resolutions. I do, however, understand screen estate and have read people saying they are changing their resolution for more screen estate.

This is where I get confused. Surely unless you have 1152x720 you won't get the hignest DPI (226).

So my question - what DPIs do the scaled resolutions give. I would like more room on screen, but I don't want to sacrifice the retina display too much.

Thanks
 

zhenya

macrumors 604
Jan 6, 2005
6,929
3,677
The DPI of the screen is fixed at the screen level; it doesn't change when you change resolutions. 1152x720 is just the 1/4 resolution so that there is no heavy graphics processing required to keep a sharp image. It should be the sharpest with the least amount of hardware overhead. At the other resolutions the graphics card must render the content off-screen, then scale it to fit the size of the screen, and since it's not a perfect integer scaling, in theory it's not quite as sharp, and requires a bit of extra processing. In practice, I find the other resolutions to be acceptably sharp with little additional lag occurring, so choose the resolution that suits your needs best and forget about it. :)
 
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ChrisPowder

macrumors member
Original poster
Apr 22, 2015
37
2
The DPI of the screen is fixed at the screen level; it doesn't change when you change resolutions. 1152x720 is just the 1/4 resolution so that there is no heavy graphics processing required to keep a sharp image. It should be the sharpest with the least amount of hardware overhead. At the other resolutions the graphics card must render the content off-screen, then scale it to fit the size of the screen, and since it's not a perfect integer scaling, in theory it's not quite as sharp, and requires a bit of extra processing. In practice, I find the other resolutions to be acceptably sharp with little additional lag occurring, so choose the resolution that suits your needs best and forget about it. :)
OK great thanks :)

I've just noticed the default resolution is 1280x800 so it's obviously doing this out of the box.
 
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