The MacBook Pro 'Core i7' 2.5 15-Inch (Dual Graphics/Force Touch - Mid-2015 Retina Display) features a 22 nm 'Haswell/Crystalwell' 2.5 GHz Intel 'Core i7' processor (4870HQ), with four independent processor 'cores' on a single silicon chip, a 6 MB shared level 3 cache, 16 GB of onboard 1600 MHz DDR3L SDRAM (which cannot be upgraded later), 512 GB of PCIe-based flash storage, and dual graphics processors - an AMD Radeon R9 M370X with 2 GB of dedicated GDDR5 memory and an integrated Intel Iris 5200 Pro graphics processor with 128 MB of 'Crystalwell' embedded DRAM (and shared system memory).
