Apple 13.3 MacBook Pro (with Retina display) dual-core Intel Core i7 processor 2.9Ghz, 8GB RAM, 256GB flash storage, Intel HD Graphics 4000 Processor: Intel Core i7 Dual-Core 2.9 GHz RAM: 8GB of 1600MHz DDR3L onboard memory Hard Drive: 256GB Flash Storage Graphics: Intel HD Graphics 4000 Operating System: OS X Mountain Lion