While portable apps are meant to be lightweight, AutoCAD 2013 still requires a minimum of a 3.0 GHz processor
What is AutoCAD 2013? Competitors, Complementary Techs & Usage AutoCad 2013 - Portable-
The risks of data loss, malware infection, and corrupted drawings far outweigh any convenience. If you need a lightweight, on-the-go CAD solution, either use Autodesk's official web app or carry a licensed installation on a laptop. For legacy version needs (like 2013), a virtual machine is your safest and most functional portable method. While portable apps are meant to be lightweight,