Model Years: Late 2017

Storage: 1TB to 4TB (SSD)

Initial OS: macOS 10.13.2 High Sierra

Latest OS: macOS 15.5 Sequoia

Released: December 14 2017

Discontinued: March 5 2021

Processor:
- Intel Xeon W-2140B
- Intel Xeon W-2150B
- Intel Xeon W-2170B
- Intel Xeon W-2191B

Graphics:
- AMD Radeon Pro Vega 56
- AMD Radeon Pro Vega 64
- AMD Radeon Pro Vega 64X

RAM Configurations Sold:
- 32GB DDR4 ECC RAM 2666MHz
- 64GB DDR4 ECC RAM 2666MHz
- 128GB DDR4 ECC RAM 2666MHz
- 256GB DDR4 ECC RAM 2666MHz

Display Specifications:
- 27" LCD Display
- 5120 x 2880 display resolution at 218ppi
- 5K Retina Display

New Features:
- Intel Xeon in iMac
- More storage