Even on a 64-bit system, you can make AutoCAD 2012 even "better" by following these expert performance tips from AUGI Forums :
You can run the application directly from a USB drive on any Windows 7 machine without needing administrative privileges for installation. autocad 2012 portable windows 7 64 bits better
For many professionals, the combination of 2012-era software and Windows 7 remains a "gold standard" for stability and performance: Even on a 64-bit system, you can make
A "portable" version is one that runs without a formal installation process. This is often preferred for several reasons: Even on a 64-bit system