The other is 1920x1080 HiDPI where each of the 1920x1080 layout pixels corresponds to exactly 2x2 pixels on-screen, thereby using all 3840x2160 pixels but in a different way (everything will be twice as large on-screen). One is 3840x2160 where each layout pixel corresponds to exactly 1 pixel on-screen. You have two choices of "native resolution". Suppose you have a 3840x2160 pixel 4K/UHD display. They will render below native res and actually look blurry. It will match the rendering resolution and not your screen's native (unless you're using your machines 1:1 scaling mode).Ī downside to this is this also works for lower scaling modes. You can confirm this by taking a screenshot and note the screenshot's resoltion. In the 16.2"'s case, the "More Space" option will actually render at 4112x2658. If you increase it to "More Space", your system has to render your screen at a higher resolution than your Native Display resolution, increasing the workload on your system. In the case of the 16.2" the "Default" scale is 1:1. Which one is matches your native resolution will vary by which laptop you have. One scaling option will always be half your native resolution in each axis, and this will be the most clear as it will map the pixels 1:1. What these are doing internally are rendering your screen at double the listed "looks like" resolution in each axis. Because the resolution of this screen is too high to render each pixel 1:1, as things would be super tiny, apple uses a HiDPI mode that scales the UI to match the size of lower resolution screen.Īpple makes this simpler for users by just labeling these modes from Larger Text, to Default, and to More Space at the high end. Taking the 16.2" as as example, it has a Native Resolution of 3456x2234. The reason bumping your scaling setting up to "more space" causes a bit of impact is because you are rendering a higher than native resolution image which is being scaled down to fit your screen. Short answer, yes there will be a performance impact, though small.
If it does not, then scaling may be done by both the GPU and the display. Usually a scaled mode uses the native display timing. A display timing may have a different resolution than the display - in that case scaling is done by the display. You need an app like SwitchResX to see if a mode is scaled or not. If for some reason this mode is a HiDPI/Retina mode (using a 6048x3928 frame buffer) then scaling will occur. The rendering resolution is 3024x1964 and no scaling is required. If you choose the "More Space" option ("Look like 3024x1964") then it probably is not a HiDPI/Retina mode.
If you choose the Default for Display mode "Looks like 1512x982" (a HiDPI or Retina mode), the rendering resolution is actually 3024x1964 with text and objects being drawn twice as wide and tall as non HiDPI/Retina mode and no scaling needs to occur. The GPU renders at whatever selected resolution (so anything up to 6048x3928) and then scales that to the display's resolution (3024x1964).
#Easyres alternative 1080p
On the Phillips HDTV, OS X suggests a “default” resolution of a Retina-scaled 1080p equivalent, and we have the choice to set other resolutions (“scaled”) including 1280 x 768, 720P, 1080i, and 1080p.Click to expand.I think that's backwards.
#Easyres alternative Pc
Click on Scaled to view the display choices.Īn actual PC monitor usually displays a “Looks like # x #” resolution underneath the TV image in the options window. The exact resolutions will vary depending on the specifications of your external display. If you prefer a different screen size, OS X gives you four other options.
#Easyres alternative mac os x
Setting Custom Resolutions for External Displays in Mac OS X
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