minimal:
reqprocessor: Dual-core from Intel or AMD at 2.0 GHz
reqgraphics: Intel 787 Express or equivalent supporting OpenGL 2.1 Core
reqmemory: 1 GB RAM
reqdiskspace: 800 MB available space
reqsystem: Mac OS X 10.10 Yosemite

recommended:
reqprocessor: Intel Core i5-2300 2.8 GHz/AMD Phenom II X4 945 3.0 GHz or equivalent
reqgraphics: NVIDIA GeForce 7800/7900/8600 series, ATI/AMD Radeon HD 2600/3600 or X1800/X1900 series supporting OpenGL 2.1 Core
reqmemory: 2 GB RAM
reqdiskspace: 800 MB available space
reqsystem: Mac OS X 10.11 El Capitan and newer