27-inch iMac 5K 3.8GHZ 8-Core 512GB

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)
True Tone technology
Configurable with nano-texture glass

Processor
3.8GHz 8?core 10th-generation Intel Core i7, Turbo Boost up to 5.0GHz

Memory
8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible

Storage
512GB SSD

Graphics
Radeon Pro 5500 XT with 8GB of GDDR6 memory

Video Support and Camera
1080p FaceTime HD camera
Simultaneously supports full native resolution on the built-in display at 1 billion colors and:
One 6016-by-3384 (6K) external display at 60Hz with support for 1 billion colors, or
Two 6016-by-3384 (6K) external displays at 60Hz with support for 1 billion colors (requires Radeon Pro 5700 or Radeon Pro 5700 XT), or
One 5120?by?2880 (5K) external display at 60Hz with support for 1 billion colors, or
Two 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or
Two 4096?by?2304 (4K) external displays at 60Hz with support for millions of colors
Thunderbolt 3 digital video output
Native DisplayPort output over USB?C
Thunderbolt 2, HDMI, DVI, and VGA output supported using adapters (sold separately)