The iMac "Core i5" 3.5 27-Inch Aluminum (Retina 5K, Mid-2017) features a 3.5 GHz Intel "Core i5" processor (7600) with four independent processor "cores" on a single chip, a 6 MB shared level 3 cache, 8 GB of easy to upgrade 2400 MHz DDR4 SDRAM, a 1 TB Hard Drive + SSD "Fusion" drive, and a Radeon Pro 575 graphics processor with 4 GB of dedicated VRAM. It also has a built-in "FaceTime HD" webcam and stereo speakers.

This model has a 27" 5120x2880 LED-backlit 16:9 widescreen IPS DCI-P3 "Retina 5K" display. The rear of the case is aluminum and is thicker in the middle and tapers to a razor thin 5 mm at the edges.

Key Features

• 27-inch (diagonal) 5120-by-2880 Retina 5K display

• 8 GB RAM 

• 1 TB Fusion Drive 

• Stunning 5-mm-thin design

• Seventh-generation quad-core Intel Core i5 processors

• Radeon Pro 570 with up to 4GB video memory

• Two Thunderbolt 3 (USB-C) ports

• Mac OS

• Model : MNEA2LL/A

• 802.11ac Wi-Fi