Built on the world's most advanced desktop operating system, Mac is as easy to use as it is powerful. No matter which Mac you choose, you're getting a computer that features the latest technology and lets you do amazing things right out of the box. Powerful AMD Radeon R9 M380, M390 or M395 graphics with 2GB video memory.27 inch (diagonal) 5120 by 2880 Retina 5K display.