- The monitors in iMacs display colors very accurately again, but Apple screw the display with a software update yet considerably. According to the German Mac & amp; i represents the latest version of OS X colors in 30-bit rather than 24-bit. Thus, the retina screens are maximized.
The step of 24- to 30-bit seems a little, but the number of colors that the screen display can rise from 16 million to a billion. This is particularly important for professional image editors and photographers.
For now, the feature works only on the 2014 and 2015 5K iMacs running the El Capitan update.