AutoCAD 2012 System Requirements :
System Requirements for 32-bit
Operating System :Windows 7 Enterprise, Ultimate, Professional, or Home Premium ( compare Windows 7 versions); Windows Vista Enterprise, Business, Ultimate, or Home Premium (SP2 or later) ( compare Windows Vista versions); or Windows XP Professional or Home edition (SP3 or later)
Processor : Intel® Pentium® 4 or AMD Athlon® dual-core processor, 3.0 GHz or higher with SSE2 technology; for Windows XP: Intel Pentium 4 or AMD Athlon dual-core processor, 1.6 GHz or higher with SSE2 technology
HDD : 2 GB free disk space for installation
RAM : 2 GB
Resolution : 1,024 x 768 display resolution with true color
System Requirements for 64-bit
Operating System : Windows 7 Enterprise, Ultimate, Professional, or Home Premium ( compare Windows 7 versions); Windows Vista Enterprise, Business, Ultimate, or Home Premium (SP2 or later) ( compare Windows Vista versions); or Windows XP Professional (SP2 or later)
Processor : AMD Athlon 64 with SSE2 technology, AMD Opteron® processor with SSE2 technology, Intel® Xeon® processor with Intel EM64T support and SSE2 technology, or Intel Pentium 4 with Intel EM64T support and SSE2 technology
HDD : 2 GB free space for installation
RAM : 2 GB
Resolution : 1,024 x 768 display resolution with true color
Additional Requirements for 3D Modeling (All Configurations)
Processor : Intel Pentium 4 processor or AMD Athlon, 3 GHz or greater; or Intel or AMD dual-core, 2 GHz or greater
HDD : 2 GB hard disk space available in addition to free space required for installation
RAM : 2 GB
Graphics Card : 1,280 x 1,024 true color video display adapter 128 MB or greater, Pixel Shader 3.0 or greater, Microsoft® Direct3D®-capable workstation-class graphics card
