For 64-bit AutoCAD? 2009:
For Windows Vista, a Direct3D capable workstation class graphics card with 128 MB or greater is required
Intel or AMD Dual Core processor, 2.0 GHz or greater
or
For Microsoft Windows Vista or 3D modeling
For Microsoft Windows XP SP2
Microsoft? Windows Vista, Windows? XP SP2 operating systems
Intel or AMD Dual Core processor, 1.6 GHz or greater
or
For 32-bit AutoCAD? 2009:
**System Requirements **