Quad-Core Intel Core i7, 4.0GHz (4th generation Haswell processor), AMD Radeon R9 M295X with 4GB of GDDR5 memory27-inch (diagonal) Retina 5K display with IPS technology, 5120‑by‑2880 resolution with support for millions of colors32GB of 1600MHz DDR3 Memory, Mac ...

Quad-Core Intel Core i7, 4.0GHz (4th generation Haswell processor), AMD Radeon R9 M295X with 4GB of GDDR5 memory27-inch (diagonal) Retina 5K display with IPS technology, 5120‑by‑2880 resolution with support for millions of colors32GB of 1600MHz DDR3 Memory, Mac OS X Yosemite, FaceTime HD camera256GB Flash Storage, 802.11ac Wi-Fi, Bluetooth 4.0, Two Thunderbolt ports, Four USB 3 ports (compatible with USB 2)What's in the Box: Apple 27" iMac Desktop Computer, Apple Wireless Keyboard, Magic Mouse, Power Cord