Apple 15.4" MacBook Pro (with Retina display) quad-core Intel Core i7 2.3GHz, 16GB RAM, 256GB flash storage, Intel HD Graphics 4000, Mac OS X Lion Processor: Intel Core i7 Quad-Core 2.30 GHz RAM: 16 GB DDR3 SDRAM Hard Drive: 256 GB Flash Storage Graphics Card: Intel HD Graphics 4000; NVIDIA GeForce GT 650M with 1GB of GDDR5 memory; 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 Operating System: Mac OS X Lion