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
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 i7 (Turbo Boost up to 3.3GHz) with 4MB shared L3 cache.
8GB of 1600MHz DDR3L onboard memory
Configurable to 16GB.
Configurable to 1TB flash storage.
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
720p FaceTime HD camera
15-inch model shown
802.11ac Wi-Fi wireless networking;4 IEEE 802.11a/b/g/n compatible
Bluetooth 4.0 wireless technology
Full-size backlit keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted “T” arrangement) with ambient light sensor
Multi-Touch trackpad for precise cursor control; supports inertial scrolling, pinch, rotate, swipe, three-finger swipe, four-finger swipe, tap, double-tap, and drag capabilities
Up to 9 hours wireless web
Up to 9 hours iTunes movie playback
Up to 30 days standby time
Built-in 71.8-watt-hour lithium-polymer battery
60W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port
Easy to use, incredibly powerful, and packed with features you’ll love,OS X Mavericks is the world’s most advanced desktop operating system.