32-bit AutoCAD 2009
Running under Windows XP:
Microsoft Windows XP SP2 operating system
Intel® Pentium® 4.3 processor or AMD Athlon®, 3.0 GHz or greater - Dual core supported
2 GB RAM - 3GB Recommended
2.5 GB free hard disk space for installation
1024×768 VGA with true color
Microsoft Internet Explorer 6.0 (SP1 or higher)
DVD Drive
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64-bit AutoCAD 2009
(The 64-bit software cannot be installed [...]
Continue reading about AutoCAD Architecture 2009 System Requirements

