Review: Apple’s 27-inch iMac with 5K Retina all about the display

The idea of 4K Ultra HD resolution is usually reserved for the highest-end TVs, but Apple has packed in a huge number of pixels into its latest 27-inch iMac. The quality of the display is fairly clear, but whether or not there’s enough of a viewable difference to justify spending the money depends on what you plan to use it for.