MacBook (Retina, 12-inch, Early 2015) - Technical Specification's Gold Retina display 12-inch (diagonal) LED-backlit display with IPS technology 2304-by-1440 resolution at 226 pixels per inch with support for millions of colors 8GB of 1600MHz LPDDR3 onboard memory 256GB PCIe-based onboard flash storage1 Size and Weight Height: 0.14–0.52 inch (0.35–1.31 cm) Width: 11.04 inches (28.05 cm) Depth: 7.74 inches (19.65 cm) Weight: 2.03 pounds (0.92 kg)2 Graphics and Video Support Intel HD Graphics 5300 Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on an external display, both at millions of colors Wireless Wi-Fi