In order for you to play XCOM: Enemy Unknown on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows Vista
Processor (CPU):
2 GHz Dual Core
Memory (RAM):
2 GB RAM
Graphics Card:
NVIDIA GeForce 8600 GT / ATI Radeon HD 2600 XT or greater
DirectX®:
9.0
Hard Drive:
20 GB HD space
Sound:
DirectX Compatible
Other Requirements:
Broadband Internet connection
Additional:
Initial installation requires one-time internet connection for Steam authentication; software installations required (included with the game) include Steam Client, Visual C++ 2008 Redistributable, DirectX and Microsoft .NET 4.
In order to play XCOM: Enemy Unknown on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
OS *:
Windows 7
Processor (CPU):
2 GHz Dual Core (Intel Core 2 Duo 2.4 GHz or Athlon X2 2.7 GHz)
Memory (RAM):
4 GB RAM
Graphics Card:
NVIDIA GeForce 9000 series / ATI Radeon HD 3000 series or greater
DirectX®:
9.0
Hard Drive:
20 GB HD space
Sound:
DirectX Compatible
Other Requirements:
Broadband Internet connection
Additional:
Initial installation requires one-time internet connection for Steam authentication; software installations required (included with the game) include Steam Client, Visual C++ 2008 Redistributable, DirectX and Microsoft .NET 4.