Display
Display
21.5-inch (diagonal) LED-backlit display
1920x1080 resolution with support for millions of colours
Retina 4K display
21.5-inch (diagonal) Retina 4K display
4096x2304 resolution with support for 1 billion colours
500 nits brightness
Wide colour (P3)
Processor
2.3GHz
2.3GHz dual‑core Intel Core i5, Turbo Boost up to 3.6GHz
3.6GHz
3.6GHz quad‑core Intel Core i3
Configurable to 3.2GHz 6‑core Intel Core i7, Turbo Boost up to 4.6GHz
3.0GHz
3.0GHz 6‑core Intel Core i5 (Turbo Boost up to 4.1GHz)
Configurable to 3.2GHz 6‑core Intel Core i7, Turbo Boost up to 4.6GHz
Memory
8GB of 2133MHz DDR4 memory
Configurable to 16GB
8GB of 2400MHz DDR4 memory
Configurable to 16GB or 32GB
8GB of 2666MHz DDR4 memory
Configurable to 16GB or 32GB
