Apple iMac 27" i7 4.2GHz 8GB 256GB (2017)

Operating System:
macOS

Processor:
4.2GHz Intel Core i7

System Memory:
8GB of 2400MHz DDR4 memory

Storage:
256GB

Graphics:
Radeon Pro 580 with 8GB of VRAM

Display:
Retina 5K display
27-inch (diagonal) Retina 5K display
5120‑by‑2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)

Wireless:
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Weight:
20.8 pounds (9.44 kg)