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Display
5K Retina display
27-inch (diagonal) Retina 5K display
5120‑by‑2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)
 
Processor 8-Core
3.2GHz Intel Xeon W
Turbo Boost up to 4.2GHz
19MB cache
Configurable to:
10-Core
3.0GHz Intel Xeon W
Turbo Boost up to 4.5GHz
23.75MB cache
14-Core
2.5GHz Intel Xeon W
Turbo Boost up to 4.3GHz
33.25MB cache
18-Core
2.3GHz Intel Xeon W
Turbo Boost up to 4.3GHz
42.75MB cache
Price $4999
Graphics Vega 56
Radeon Pro Vega 56 graphics processor
with 8GB of HBM2 memory
56 compute units
3584 stream processors
9 teraflops single precision
18 teraflops half precision
Configurable to: Vega 64
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
Vega 64X
Radeon Pro Vega 64X graphics processor
with 16GB of HBM2 memory
64 compute units
4096 stream processors
12 teraflops single precision
24 teraflops half precision
Memory 32GB
32GB of 2666MHz DDR4 ECC memory
Quad-channel memory controller
Configurable to: 64GB
64GB of 2666MHz DDR4 ECC memory
128GB
128GB of 2666MHz DDR4 ECC memory
256GB
256GB of 2666MHz DDR4 ECC memory
Storage1 1TB SSD
Configurable to: 2TB SSD, 4TB SSD
Video Support and Camera
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)
Audio
Stereo speakers
Four microphones
3.5 mm headphone jack
Support for “Hey Siri”