In order for you to play Warhammer 40,000: Mechanicus on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
OS X 10.9 (64-bit)
Processor (CPU):
Intel Core i7 3.0 GHz+
Memory (RAM):
8 GB RAM
Graphics Card:
OpenGL 4.1 - ATI Radeon HD 7970, NVIDIA GeForce GT 770M
Storage:
11 GB available space
In order to play Warhammer 40,000: Mechanicus on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
OS X 10.9 (64-bit)
Processor (CPU):
Intel Core i7 3.0 GHz+
Memory (RAM):
8 GB RAM
Graphics Card:
OpenGL 4.1 - Radeon Pro 575 4GB, NVIDIA GeForce GT 960M
Storage:
11 GB available space