3.1GHz 6‑core Intel Core i5 (Turbo Boost up to 4.3GHz)
Memory:
8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible; Configurable to 16GB, 32GB or 64GB
Graphics and Video Support:
Radeon Pro 575X with 4GB of GDDR5 memory
Storage:
1TB Fusion Drive
Display :
27-inch (diagonal) Retina 5K display 5120‑by‑2880 resolution with support for one billion colors; 500 nits brightness; Wide color (P3)
Camera & Video Support:
FaceTime HD camera
Simultaneously supports full native resolution on the built-in display at 1 billion colors
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)
Audio:
Stereo speakers
Microphone
3.5 mm headphone jack
Connection and Expansion:
SDXC card slot
Four USB 3 ports (compatible with USB 2)
Two Thunderbolt 3 (USB-C) ports with support for: DisplayPort; Thunderbolt (up to 40 Gbps); USB 3.1 Gen 2 (up to 10 Gbps); Thunderbolt 2, HDMI, DVI, and VGA supported using adapters