3.4GHz Quad-core Intel Core i5 (Turbo Boost up to 3.8GHz) 8GB (two 4GB) of 2400MHz DDR4 memory1TB Fusion DriveRadeon Pro 570 with 4GB video memoryRetina 5K (5120 x 2880) P3 display27-inch (diagonal) Retina 5K display 5120 by 2880 resolution with support f...