How much RAM do I need for large assemblies in CAD software?

32GB helps if you regularly work with assemblies that have hundreds or thousands of components. 16GB will choke; 32GB gives breathing room. SolidWorks and AutoCAD use RAM to hold the assembly model, mates, and undo history, and hitting the memory wall causes swapping and slowdowns. But 32GB won’t fix a slow CPU or mechanical drive—upgrade those first.