APPLE MB Pro 15" Retina QC i7 2.2GHz/16GB/256G

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

Native resolution: 2880 by 1800 pixels (Retina); scaled resolutions: 1920 by 1200, 1680 by 1050, 1280 by 800, and 1024 by 640 pixels

2.2GHz

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

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

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.

16GB of 1600MHz DDR3L onboard memory

• 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

• 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)
• Support for up to 5120-by-2880 resolution at 60Hz on a single external display (model with AMD Radeon R9 M370X only)

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

• 720p FaceTime HD camera

• Stereo speakers
• Dual microphones
• Headphone port
• Support for Apple iPhone headset with remote and microphone
• Support for audio line out (digital/analog)

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

Force Touch trackpad for precise cursor control and pressure-sensing capabilities; enables Force clicks, accelerators, pressure-sensitive drawing, and Multi-Touch gestures

• 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