minimal:
reqprocessor: Intel quad-core processor running at 3.1 GHz
reqgraphics: Intel integrated or mobile graphic card, with at least 768MB of dedicated or shared VRAM and with at least Shader Model 5.0 support
reqmemory: 4096 MB RAM
reqsystem: Linux x86_64

recommended:
reqprocessor: Intel quad-core processor running at 3.1 GHz
reqgraphics: AMD/NVIDIA Dedicated graphics card with at least 512MB of dedicated VRAM and with at least Shader Model 5.0 support
reqmemory: 4096 MB RAM
reqsystem: MAC OS X 10.7.5(Lion), 10.8.5(Mountain Lion), 10.9.5(Mavericks) and 10.10.2(Yosemite)