Apple weds high-res 5K visuals into its sleek 5mm thin 27 inch iMac with Retina 5K Display. With a 5120 x 2880 native resolution, this iMac provides 14.7 million pixels, which is 7 times more than the standard HD display. The Retina 5K display also features a wider color gamut. Using a P3-based color gamut, the Retina 5K display provides a 25% larger color space than standard sRGB displays.