Modern simulation software is resource-intensive. COMSOL 6.x requires significant RAM, modern processor architecture, and robust graphics cards. For users working on older machines or in facilities with legacy hardware infrastructure, version 3.5a represents a lighter, more agile tool that can run comfortably on older Windows XP or Windows 7 systems without crashing due to memory overflow.
Some users prefer the straightforward, tree-based navigation of the older GUI. Comsol Multiphysics 3.5a Free Download