Intel Core i5 Processor 2.6GHz Mac OS X 10.9 Mavericks 8GB DDR3L-1600 Onboard RAM 256GB Flash Storage Intel Iris SDXC Card Slot 802.11ac Wireless Network Bluetooth 4.0 13.3" LED-backit Display with IPS Technology Incredibly powerful. By design. When we designed the MacBook Pro with Retina display, we started with a blank slate. That gave us the freedom to imagine something radical, something entirely different. A notebook so thin, so light, and so powerful. A notebook designed for the future, but ready to use today.