MacBook Pro Early 2015 features a 14 nm Broadwell 2.9 GHz Intel Core i5 processor with dual independent processor cores on a single silicon chip, a 3 MB shared level 3 cache, 8 GB of onboard 1866 MHz LPDDR3 SDRAM upgradeable up to 16 GB, 128 GB, 256 GB or 512 GB of 4 Lane PCIe-based flash storage by default and an integrated Intel Iris Graphics 6100 graphics processor that shares memory with the system.