We have been hearing rumors about Apple releasing a Retina iMac for some time, and now it would appear that some evidence of a Retina iMac has been discovered in OS X Yosemite.
French Apple site MacBidouille has discovered some references to a Retina iMac in OS X Yosemite, and it would appear that a new 27 inch iMac could come with double the resolution of the current model, this would mean a display with a native resolution of around 6400 x 3600.
The first of these resolutions indicates hexa “00001900 00000e10” is therefore a resolution scaling of … 6400 x 3600 (probably 3200×1800 HiDPI).
Continues and is 5760×3240 (2880×1620 HiDPI) 4096×2304 (2048×1152 HiDPI), etc..
(There are other resolutions, just make the conversion from hex)
With this alone, it is not possible to guess the native resolution of the machine. This is a resolution that does not appear in the file, since it is native and does not have to be “scaled”.
Knowing that there is a gap between the values of 5760 and 4096, one can imagine something between these two (probably 5120×2880, 2560×1440 or in HiDPI), but this is speculation.
The resolutions would then be scaled down on the Retina iMac from 5120 x 2880, meaning that the final resolution that the device would get would be around 3200 x 1800.
This happens on the current Retina MacBook Pro’s, the 15 inch model has a native resolution of 2880 x 1800, which is scaled down into a Retina resolution of 1440 x 900. The display can also generate a resolution of 3840 x 2400 pixels which is then scaled down to give a Retina resolution of 1920 x 1200 pixels.
As yet there are no details on when we might see a new Retina iMac, but if it is included in OS X Yosemite, then we suspect we will see some new iMacs this fall when Yosemite launches.
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