Operating System:
macOS High Sierra

Processor:
2.6GHz quad-core Intel Core i7, Turbo Boost up to 3.5GHz, with 6MB shared L3 cache

System Memory:
16GB of 2133MHz LPDDR3 onboard memory

Storage:
256GB

Graphics:
Radeon Pro 450 with 2GB of GDDR5 memory and automatic graphics switching
Intel HD Graphics 530

Display:
Retina display
15.4-inch (diagonal) LED-backlit display with IPS technology; 2880-by-1800 native resolution at 220 pixels per inch with support for millions of colors

Wireless:
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Battery:
Up to 10 hours wireless web
Up to 10 hours iTunes movie playback
Up to 30 days standby time
Built-in 76.0-watt-hour lithium-polymer battery
87W USB-C Power Adapter

Weight:
4.02 pounds (1.83 kg)

Operating System:
macOS

Processor:
2.3GHz dual-core Intel Core i5, Turbo Boost up to 3.6GHz, with 64MB of eDRAM15W)

System Memory:
8GB of 2133MHz LPDDR3 onboard memory

Storage:
256GB

Graphics:
Intel Iris Plus Graphics 640

Display:
13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors

Wireless:
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Battery:
Up to 10 hours wireless web
Up to 10 hours iTunes movie playback
Up to 30 days of standby time

Weight: 3.02 pounds (1.37 kg)

Operating System
macOS Sierra

Processor
2.9GHz dual-core Intel Core i5, Turbo Boost up to 3.1GHz, with 4MB shared L3 cache

System Memory
8GB of 1866MHz LPDDR3 onboard memory

Storage
1TB

Graphics
Intel Iris Graphics 540

Display
Retina display

13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors

Wireless
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Battery
Up to 10 hours wireless web
Up to 10 hours iTunes movie playback
Up to 30 days of standby time
Built-in 54.5-watt-hour lithium-polymer battery
61W USB-C Power Adapter

Weight
3.02 pounds (1.37 kg)

Operating System:
macOS

Processor:
2.2GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.4GHz) with 6MB shared L3 cache

System Memory:
16GB of 1600MHz DDR3L onboard memory

Storage:
256GB

Graphics:
Intel Iris Graphics 6100

Display:
Retina display
15.4-inch (diagonal) LED-backlit display with IPS technology; 2880-by-1800 native resolution at 220 pixels per inch with support for millions of colors

Wireless:
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Battery:
Up to 9 hours wireless web
Up to 9 hours iTunes movie playback
Up to 30 days of standby time
Built-in 99.5-watt-hour lithium-polymer battery
85W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port

Weight:
4.49 pounds (2.04 kg)

Operating System:
macOS Sierra

Processor:
2.0GHz dual-core Intel Core i5, Turbo Boost up to 3.1GHz, with 4MB shared L3 cache

System Memory:
8GB of 1866MHz LPDDR3 onboard memory

Storage:
256GB

Graphics:
Intel Iris Graphics 540

Display:
Retina display

13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors

Wireless:
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Battery:
Up to 10 hours wireless web
Up to 10 hours iTunes movie playback
Up to 30 days of standby time
Built-in 54.5-watt-hour lithium-polymer battery
61W USB-C Power Adapter

Weight:
3.02 pounds (1.37 kg)

Operating System:
macOS

Processor:
2.9GHz dual-core Intel Core i5 processor (Turbo Boost up to 3.3GHz) with 3MB shared L3 cache

System Memory:
8GB of 1866MHz LPDDR3 onboard memory

Storage:
512GB

Graphics:
Intel Iris Graphics 6100

Display:
Retina display
13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors

Wireless:
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Battery:
Up to 10 hours wireless web
Up to 12 hours iTunes movie playback
Up to 30 days of standby time
Built-in 74.9-watt-hour lithium-polymer battery
60W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port

Weight:
3.48 pounds (1.58 kg)

Operating System:
macOS

Processor:
2.7GHz dual-core Intel Core i5 processor (Turbo Boost up to 3.1GHz) with 3MB shared L3 cache

System Memory:
8GB of 1866MHz LPDDR3 onboard memory

Storage:
128GB

Graphics:
Intel Iris Graphics 6100

Display:
Retina display
13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors

Wireless:
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Battery:
Up to 10 hours wireless web
Up to 12 hours iTunes movie playback
Up to 30 days of standby time
Built-in 74.9-watt-hour lithium-polymer battery
60W MagSafe 2 Power Adapter with cable management system; MagSafe 2 power port

Weight:
3.48 pounds (1.58 kg)