Dell UP2715K 5K Display: Works on Late 2013 Macbook Pro Retina too!
Related: Macs, 4K and 5K, MacBook Pro, MacBook Pro and MacBook, displays, Display
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The Dell UP2715K also works with the 2013 MacBook Pro Retina (in addition to the 2015 MacBook Pro Retina). It likely works on the late 2013 Mac Pro as well (not yet tested).
As usual with Apple display support, one can run at full resolution (5120 X 2880) or 2:1 or other display scaling factors. Most users will find the full resolution mode unusable due to the tiny size of user interface elements and thus the 2:1 scaling that “looks like” a 2560 X 1440 display will be most useful (just as with Apple’s iMac 5K).
In particular, the NEC display is desirable because it is a 32-inch display, hence the pixel density is far more favorable (cramming 5120 pixels into a 27" display vs 3840 pixels into a 32" display).
These images show the Dell UP2715K running on the late 2013 MacBook Pro Retina. As with the iMac 5K, the user interface elements are all but unusable in full resolution mode. The 3840 X 2160 scaling (4:3 ratio) is more tolerable, but still quite small to be readable.
Toggle to compare 2:1 display scaling vs full resolution mode.
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