Description
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)
Processor
3.4GHz
3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8GHz)
3.5GHz
3.5GHz quad‑core Intel Core i5 (Turbo Boost up to 4.1GHz)
Configurable to 4.2GHz quad-core Intel Core i7 (Turbo Boost up to 4.5GHz)
3.8GHz
3.8GHz quad‑core Intel Core i5 (Turbo Boost up to 4.2GHz)
Configurable to 4.2GHz quad-core Intel Core i7 (Turbo Boost up to 4.5GHz)
Memory
3.4GHz
8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB or 32GB
3.5GHz
8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, or 64GB
3.8GHz
8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, or 64GB
Storage1
3.4GHz
1TB Fusion Drive
Configurable to 2TB Fusion Drive or 256GB, 512GB, or 1TB SSD
3.5GHz
1TB Fusion Drive
Configurable to 2TB or 3TB Fusion Drive or 256GB, 512GB, or 1TB SSD
3.8GHz
2TB Fusion Drive
Configurable to 3TB Fusion Drive or 512GB, 1TB, or 2TB SSD
Graphics
3.4GHz
Radeon Pro 570 with 4GB of VRAM
3.5GHz
Radeon Pro 575 with 4GB of VRAM
3.8GHz
Radeon Pro 580 with 8GB of VRAM
Video Support and Camera
FaceTime HD camera
Simultaneously supports full native resolution on the built-in display at 1 billion colors and:
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
Support for Apple iPhone headset with microphone
Connections and Expansion
3.5 mm headphone jack
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 (sold separately)
10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Kensington lock slot