Codemasters have sent over the system specifications you'll need to run the PC version of DiRT 2. The game has been enhanced for DirectX 11 on Windows 7, you can find the full details inside.
Here they are:
Recommended Specifications: Enhanced for DirectX 11
- OS: Microsoft Windows XP, Vista or Windows 7
- Processor: Intel Core i7 or AMD Phenom II
- Memory: 3GB
- HD Space: 10GB
- Video Card: ATi Radeon HD 5700 Series
Minimum Specifications:
- OS:Microsoft Windows XP, Vista or Windows 7
- Processor: Intel Pentium 4 3.0Ghz, AMD Athlon 64 3400+
- Memory: 1GB (2Gb for Windows Vista)
- HD Space: 10GB
- Video Card: ATI Radeon X1500, NVIDIA GeForce 6800
