“Evidence of upcoming iMac updates is continuing to accumulate, and the latest hint points toward support for models equipped with Retina displays,” Eric Slivka reports for MacRumors.As noted by MacBidouille, the OS X Yosemite developer preview includes a new file defining display scaling resolution options for a machine identified as an iMac.”
“The file includes a series of scaling resolution options for this machine, maxing out at 6400 x 3600 pixels, or 3200 x 1800 as a Retina display,” Slivka reports. “The display itself would carry a somewhat lower native resolution, perhaps 5120 x 2880 to simply pixel double the current 27-inch iMac, but as with the Retina MacBook Pro higher resolutions are specified and generated by the machine before being scaled back down.”
“As an example of how these higher-than-native resolution options are used, while the 15-inch Retina MacBook Pro has a native resolution of 2880 x 1800 (giving screen real estate of 1440 x 900 as Retina), the system is capable of generating a 3840 x 2400 desktop that is then scaled down to give the real estate of a 1920 x 1200 display,” Slivka reports. “In the case of this iMac, a similar scenario would see the initial 6400 x 3600 screen scaled to display as 3200 x 1800 on the Retina iMac.”
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