1.1GHz Dual-Core Intel Core M Broadwell processor (Turbo Boost up to 2.4 GHz) with 4 MB shared L3 cache 8GB 1600MHz LPDDR3 SDRAM, 256GB PCIe-based onboard flash storage Intel HD Graphics 5300, 2304 x 1440 Retina, LED-backlit display, Mac OS X v10.10 Yosemite