minimal:
reqprocessor: AMD Athlon 64 Processor 3800+ 2.4Ghz or better, Intel Pentium 4 530 3.0Ghz Processor or better
reqgraphics: NVIDIA 7800GT 256MB graphics card or better, ATI Radeon X1900 256MB graphics card or better that supports Shader Model 3 and has at least 256 MB of VRAM
reqmemory: 2 GB RAM
reqdiskspace: 2 GB available space
reqsystem: OS X v10.7 Lion or higher
reqother: Some users have reported issues with Intel HD 4000 series cards. Also, users using open source graphics drivers such as Mesa have had problems. We recommend installing the manufacturers drivers for the most robust compatibility.

recommended:
reqprocessor: AMD Athlon 64 Processor 3800+ 2.4Ghz or better, Intel Pentium 4 530 3.0Ghz Processor or better
reqgraphics: NVIDIA 8800GT 512MB graphics card or better, ATI Radeon HD4830 512MB graphics card or better
reqmemory: 4 GB RAM
reqdiskspace: 2 GB available space
reqsystem: OS X v10.7 Lion or higher