Minimum:

Supported OS: Windows® XP or Vista.
Processor: 2.0Ghz Intel Pentium IV or equivalent or AMD Athlon XP or equivalent. SSE capable processor required.
Memory: 512MB RAM; Vista users require 1GB of RAM to play the game
Graphics: DirectX 9.0c compatible 64MB video card with Pixel Shader 1.1 support or equivalent and latest manufacturer drivers
Sound: DirectX® 9.0c compatible 16-bit sound card
Input Devices: Keyboard, Mouse
Hard Drive: 9GB of uncompressed free hard drive space

Recommended:

Required for Multiplayer:

Internet connection required for single-player and multiplayer play

Collections with Company of Heroes: Opposing Fronts