To reduce file size (from ~3GB to ~500MB), repackers strip out:
Unlike 32-bit systems limited to ~3.5 GB of usable RAM, the Windows 7 64-bit environment allows AutoCAD 2012 to utilize much larger amounts of memory (8 GB or more recommended), which is essential for complex 3D models and large DWG files. autocad 2012 portable windows 7 64 bits better
: Create and edit complex patterns easily with the improved ARRAY command. To reduce file size (from ~3GB to ~500MB),
While official support for older software has shifted to newer versions, the combination of and Windows 7 64-bit remains a popular legacy setup for users with specific hardware constraints or specialized workflows. Why AutoCAD 2012 on Windows 7 64-bit? autocad 2012 portable windows 7 64 bits better
2 GB minimum (4 GB or higher is recommended for 3D modeling).