Windows
OS: Win7 64-bit, Win8/8.1 64-bit Processor: Core 2 Duo E8200 2.66GHz or Phenom II X2 545 Memory: 3 GB RAM Graphics: GeForce GTS 250 or Radeon HD 4830 DirectX: Version 10 Network: Broadband Internet connection Storage: 20 GB available space Additional Notes: UNSUPPORTED HARDWARE: IntelHD Integrated Graphics Chips, 32-bit Operating Systems, NVIDIA FleX features require a GeForce GTX 770 or higher (GeForce GTX 980 recommended).