In order for you to play Black Mirror on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
OS X 10.11 El Capitan
Processor (CPU):
Intel Core i5 3,2 Ghz
Memory (RAM):
8 GB RAM
Graphics Card:
HD7950 Mac Edition / GTX 680 Mac / R9 M370X (dedicated 2 GB VRAM)
Storage:
11 GB available space
In order to play Black Mirror on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
OS X 10.11 El Capitan or newer
Processor (CPU):
Intel Core i5 3,2 Ghz
Memory (RAM):
8 GB RAM
Graphics Card:
HD7950 Mac Edition / GTX 680 Mac / R9 M370X (dedicated 2 GB VRAM)
Storage:
11 GB available space