The primary of those resolutions signifies hexa “00001900 00000e10″ is subsequently a decision scaling of … 6400 x 3600 (in all probability 3200×1800 HiDPI).Since 2012 we've got been listening to many rumors and studies claiming that Apple is engaged on a retina iMac and that may be an ideal factor to see coming.
Continues and is 5760×3240 (2880×1620 HiDPI) 4096×2304 (2048×1152 HiDPI), and so forth..
(There are different resolutions, simply make the conversion from hex)
With this alone, it isn't attainable to guess the native decision of the machine. This can be a decision that doesn't seem within the file, since it's native and doesn't should be “scaled”.
Figuring out that there's a hole between the values of 5760 and 4096, one can think about one thing between these two (in all probability 5120×2880, 2560×1440 or in HiDPI), however that is hypothesis.
Understand that the final time Apple up to date the iMac was within the fall of final yr, which included processor velocity and storage bumps. The pc was utterly redesigned in late 2012.