minimal:
reqprocessor: 1.4 GHz dual-core Intel Core i5 processor
reqgraphics: OpenGL 3.2 capable graphics card, Intel HD Graphics 5000 minimum
reqmemory: 2 GB RAM
reqdiskspace: 2 GB available space
reqsystem: Mac OS X 10.7.5 or later
reqother: Low Rendering Quality setting is recommended on Mac models without dedicated graphics cards such as the Macbook Air

recommended:
reqprocessor: 2.5 GHz dual-core Intel Core i5 processor
reqgraphics: OpenGL 3.2 capable graphics card, Geforce GT 650M or better recommended
reqmemory: 4 GB RAM
reqdiskspace: 2 GB available space
reqsystem: Mac OS X 10.8.5 or later