A groundbreaking Retina display. All-flash architecture. The latest Intel processors. Remarkably thin and light 13-inch and 15-inch designs. Together, these features take the notebook to a place it"s never been. And they"ll do the same for everything you create with it.The 15-inch MacBook Pro with Retina display has the power to do even more amazing things. Fourth-generation quad-core Intel Core i7 processors provide the fastest performance ever in a MacBook Pro. Display 15.4-inch LED-backlit Retina display with IPS technology; 2880-by-1800 native resolution at 220 pixels per inch with support for millions of colorsProcessor2.0 GHz quad-core Intel Core i7 (Turbo Boost up to 3.2 GHz) with 6 MB shared L3 cacheStorage 256 GB flash storageMemory 8 GB of 1600 MHz DDR3L onboardGraphics Iris Pro Graphics (integrated, with 128 MB of embedded memory)NVIDIA GeForce GT 750M (discrete, with 2 GB of GDDR5 memory and automatic graphics switching)Video Thunderbolt digital video output (native Mini DisplayPort output); compatible with DVI, VGA, and dual-link DVI output using optional adaptersHDMI video outputAudio Stereo speakers; dual microphones; headphone port; support for Apple iPhone headset with microphone; support for audio line out (digital/analog)Connections Two Thunderbolt ports (up to 20 Gbps)Two USB 3 ports (up to 5 Gbps)