The MacBook Pro "Core i5" 2.6 13-Inch (Retina Display) features a 22 nm "Haswell" 2.6 GHz Intel "Core i5" processor (4278U), with dual independent processor "cores" on a single silicon chip, a 3 MB shared level 3 cache, 8 GB of onboard 1600 MHz DDR3L SDRAM (which could be upgraded to 16 GB at the time of purchase, but cannot be upgraded later), 128 GB or 256 GB of PCIe-based flash storage, and an integrated Intel Iris 5100 graphics processor that shares memory with the system.

Features:

• 2.6 GHz Dual-Core Intel Core i5 Processor (Turbo Boost up to 3.1 GHz, 3 MB shared L3 cache)
• 8 GB 1600 MHz DDR3L RAM; 128 GB PCIe-based Flash Storage
• 13.3-inch IPS Retina Display, 2560-by-1600 resolution
• Intel Iris Graphics
• Wireless Communication Standard: 802.11ac