Battery Life:
Up to 8 hours wireless web Up to 8 hours iTunes movie playback Up to 30 days standby time

Size and weight:

Height: 0.71 inch (1.8 cm)

Width: 14.13 inches (35.89 cm)

Depth: 9.73 inches (24.71 cm)

Weight: 4.46 pounds (2.02 kg) 

Connections and expansion:

• MagSafe 2 power port
• Two Thunderbolt ports (up to 10 Gbps)
• Two USB 3 ports (up to 5 Gbps)
• HDMI port
• Headphone port
• SDXC card slot
• Apple Thunderbolt to FireWire Adapter (sold separately)
• Apple Thunderbolt to Gigabit Ethernet Adapter (sold separately)

Display:

• Retina display; 15.4-inch (diagonal) LED-backlit display with IPS technology; 2880-by-1800 resolution at 220 pixels per inch with support for millions of colors
• Supported resolutions: 2880 by 1800 pixels (Retina); scaled resolutions: 1920 by 1200, 1680 by 1050, 1280 by 800, and 1024 by 640 pixels

Graphics and video support:

• Intel Iris Pro Graphics
• AMD RADEON R9 370X graphics processor with 2GB of GDDRS memory
• 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 DisplayPort 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

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 DisplayPort to Dual-Link DVI Adapter (sold separately)

 

  

Processor and memory:

• 2.8GHz quad-core Intel Core i7 processor (Turbo Boost up to 4.0GHz) with 6MB L3 cache
• 16GB 1600MHz DDR3L SDRAM

Battery and power:

• Up to 7 hours wireless web
• Up to 30 days standby time
• Built-in 95-watt-hour lithium-polymer battery
• 85W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port