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
• Supported scaled resolutions:
  • 1920 by 1200
  • 1680 by 1050
  • 1280 by 800
  • 1024 by 640
• 300 nits brightness
• Standard color gamut (sRGB)
• 900:1 contrast ratio

Processor

• 2.5GHz
  2.5GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.7GHz) with 6MB shared L3 cache
  Configurable to 2.8GHz quad-core Intel Core i7 (Turbo Boost up to 4.0GHz) with 6MB shared L3 cache.

Memory

• 16GB of 1600MHz DDR3L onboard memory

Storage¹

• 2.5GHz 
  128GB PCIe-based flash storage
  Configurable up to 1TB flash storage.

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: 4.49 pounds (2.04 kg)²

Graphics and Video Support

• Intel Iris Pro Graphics​
  AMD Radeon R9 M370X with 2GB of GDDR5 memory and automatic graphics switching
• Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on up to two external displays, both at millions of colors
• Thunderbolt digital video output
  • Native Mini DisplayPort output
  • DVI, VGA, dual-link DVI, and HDMI output supported using Mini DisplayPort adapters (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