Apple iMac 27" Desktop with Retina 5K display - 4.0GHz Intelquad-core Intel Core i7, 1TB Fusion Drive, 16GB 1867MHz DDR3 SDRAM, R9 M390 2GB GDDR5, OS X El Capitan, ( VERSION) 4.0GHz quad-core Intel Core i7, Turbo Boost up to 4.2GHz 16GB 1876MHz DDR3 SDRAM 1TB Fusion Drive AMD Radeon R9 M390 graphics with 2GB video memory Magic Mouse 2, Magic Keyboard (English) & User's Guide