Display Retina display: 13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 resolution at 227 pixels per inch with support for millions of colors Native resolution: 2560 by 1600 pixels (Retina);
scaled resolutions: 1680 by 1050, 1440 by 900, and 1024 by 640 pixels Processor 2.6GHz 2.6GHz dual-core Intel Core i5 processor (Turbo Boost up to 3.1GHz) with 3MB shared L3 cache Configurable to 2.8GHz dual-core Intel Core i5 (Turbo Boost up to 3.3GHz) with 3MB shared L3 cache or 3.0GHz dual-core Intel Core i7 (Turbo Boost up to 3.5GHz) with 4MB shared L3 cache.
2.8GHz 2.8GHz dual-core Intel Core i5 processor (Turbo Boost up to 3.3GHz) with 3MB shared L3 cache Configurable to 3.0GHz dual-core Intel Core i7 (Turbo Boost up to 3.5GHz) with 4MB shared L3 cache. Memory 8GB of 1600MHz DDR3L onboard memory Configurable to 16GB.
Storage1 2.6GHz – 128GB 128GB PCIe-based flash storage 2.6GHz – 256GB 256GB PCIe-based flash storage 2.8GHz – 512GB 512GB PCIe-based flash storage Configurable to 1TB flash storage.
Size and Weight Height: 0.71 inch (1.8 cm) Width: 12.35 inches (31.4 cm) Depth: 8.62 inches (21.9 cm) Weight: 3.46 pounds (1.57 kg)2 Graphics and Video support Intel Iris Graphics Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays, both at millions of colors Thunderbolt digital video output Native Mini DisplayPort output DVI output using Mini DisplayPort to DVI Adapter (sold separately) VGA output using Mini DisplayPort to VGA Adapter (sold separately) Dual-link DVI output using Mini Display Port to Dual-Link DVI Adapter (sold separately) HDMI video output Support for 1080p resolution at up to 60Hz Support for 3840-by-2160 resolution at 30Hz Support for 4096-by-2160 resolution at 24Hz Camera 720p FaceTime HD camera