Microsoft® Windows® 7, Microsoft® Windows Vista® (SP2 or later), Enterprise, Business, Ultimate, and Home Premium editions (compare Windows Vista versions), or Microsoft® Windows® XP Home and Professional (SP3 or later)
Intel® Pentium® or AMD Athlon® dual-core processor, 1.6 GHz or higher with SSE2 technology for Windows XP or Intel Pentium 4 or AMD Athlon™ dual-core, 3 GHz or higher with SSE2 technology for Windows Vista
2 GB RAM
6.3 GB free disk space for installation
1,280 x 1,024 with display with true color
Microsoft® Internet Explorer® 7.0 or later
Microsoft Mouse-compliant pointing device
Download and installation from DVD
For 64-Bit AutoCAD Mechanical 2013
Microsoft Windows 7, Microsoft Windows Vista (SP2 or later) Enterprise, Business, Ultimate, or Home Premium editions (compare Windows Vista versions), or Microsoft Windows XP Professional x64 edition (SP2 or later)
AMD Athlon with SSE2 technology, AMD Opteron® with SSE2 technology, Intel® Xeon® with Intel EM64T support with SSE2 technology, or Intel Pentium 4 with Intel EM64T support with SSE2 technology
2 GB RAM
6.3 GB free disk space for installation
1,280 x 1,024 display with true color
Microsoft Internet Explorer 7.0 or later
Microsoft Mouse-compliant pointing device
Download and Installation from DVD
Additional System Requirements for 3D Modeling
Intel Pentium 4 or AMD Athlon processor, 3 GHz or greater, or Intel or AMD dual-core processor, 2 GHz or greater
2 GB RAM or greater
2 GB free hard disk available, not including installation
1,280 x 1,024 32-bit color video display adapter (true color) 128 MB or greater, Pixel Shader 3.0 or greater, Direct3D®-capable workstation-class graphics card