Display

• 27-inch (diagonal) Retina 5K display

•5120‑by‑2880 resolution with support for one billion colors

•500 nits brightness

•Wide color (P3)

Processor

18-Core

•2.3GHz Intel Xeon W
Turbo Boost up to 4.3GHz
42.75MB cache

RAM

128GB of 2666MHz DDR4 ECC memory

Hard Drive

4TB SSD storage

Graphics Coprocessor

Radeon Pro Vega 64 Graphics Processor

•with 16GB of HBM2 memory

•64 compute units

•4096 stream processors

•11 teraflops single precision

•22 teraflops half precision

Wireless Type

• 802.11ac Wi-Fi wireless networking;³ IEEE 802.11a/b/g/n compatible

•Bluetooth 5.0 wireless technology

Connections

•Nbase-T Ethernet with support for 1Gb, 2.5Gb, 5Gb, and 10Gb Ethernet using RJ‑45 connector

•SDXC card slot with support for UHS‑II

•Four USB-A ports

•Four Thunderbolt 3 (USB-C) ports with support for:

◦DisplayPort 1.2

◦Thunderbolt (up to 40Gb/s)

◦USB 3.1 Gen 2 (up to 10Gb/s)

◦Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)

Display Support

Connect up to: 

•Three dual-cable 5K displays

•Six Thunderbolt displays

Audio Support

• Stereo speakers

•Four microphones

•3.5 mm headphone jack

•Support for “Hey Siri”

Video Support

• 1080p FaceTime HD camera

•Simultaneously supports full native resolution on the built-in display at 1 billion colors and: 

◦Two 5120‑by‑2880 (5K) external displays at 60Hz with support for 1 billion colors, or

◦Four 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or

◦Four 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colors

•Support for extended desktop and video mirroring modes

•Thunderbolt 3 digital video output

•Native DisplayPort output over USB-C

•Thunderbolt 2, HDMI, DVI, and VGA output supported using adapters (sold separately)