In order for you to play Pillars of Eternity - Hero Edition on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
OS X 10.6.3 Leopard 64-bit or newer
Processor (CPU):
Intel Core i5-540M @ 2.53 GHz
Memory (RAM):
4 GB RAM
Graphics Card:
ATI Radeon HD 6750M or NVIDIA GeForce GT 330M
Storage:
14 GB available space
In order to play Pillars of Eternity - Hero Edition on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
OS X 10.9 Mavericks 64-bit or newer
Processor (CPU):
Intel Core i5-540M @ 3.40 GHz
Memory (RAM):
8 GB RAM
Graphics Card:
Radeon R9 M290X or Nvidia GeForce GTX 775M 2GB
Storage:
14 GB available space