Apple imac 215 2015 os x intel core i5 processor memory 8 gb hard drive 1 tb with built in wifi technical specifications for apple imac 215 2015 overview type imac mk142ba operating system os x el capitan specification processor intel core i5 processor dual core 16 gh 27 ghz with turbo boost memory ram 8 gb lpddr3 storage 1 tb hdd 5400 rpm screen screen size 215 screen type ips resolution 1920