In order for you to play Trainz Railroad Simulator 2019 on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
11.1
Processor (CPU):
Intel i5 2Ghz
Memory (RAM):
4 GB RAM
Graphics Card:
Radeon Pro 555 with 1GB VRAM supporting OpenGL 3.3
Network:
Broadband Internet connection
Storage:
50 GB available space
Sound Card:
Yes
In order to play Trainz Railroad Simulator 2019 on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
11.1
Processor (CPU):
Intel i7 3 GHz
Memory (RAM):
16 GB RAM
Graphics Card:
Radeon Pro 580 with 8GB VRAM (3.8GHz)
Network:
Broadband Internet connection
Storage:
50 GB available space
Sound Card:
Yes