System Requirements for Windows Vista:

Minimum System Requirements for Windows Vista:
For Home Basic:

• 1 GHz 32-bit (x86) or 64-bit (x64) processor
• 512 MB of system memory(RAM)
• 20 GB hard drive with at least 15 GB of available space
• Support for DirectX 9 graphics and 32 MB of graphics memory
• DVD-ROM drive
• Audio Output
• Internet access.

For Premium (or) Business (or) Ultimate:

• 1 GHz 32-bit (x86) or 64-bit (x64) processor
• 1 GB of system memory(RAM)
• 40 GB hard drive with at least 15 GB of available space
• DVD-ROM drive
• Audio Output
• Internet access.

Support for DirectX 9 graphics with:

1. WDDM Driver
2. 128 MB of graphics memory (minimum)
3. Pixel Shader 2.0 in hardware
4. 32 bits per pixel.