32GB RAM helps large assemblies.

Yes, if you regularly work with assemblies that have hundreds or thousands of components. 16GB will choke; 32GB gives breathing room.

SolidWorks and AutoCAD both use RAM to hold the assembly model, mates, constraints, and undo history. When you hit the memory wall, your system starts swapping to disk and everything slows to a crawl. Large assemblies with high-res textures or complex part geometry are the worst offenders.

But 32GB won’t fix a slow CPU or a spinning hard drive. RAM is one piece. If your CPU is five years old or you’re still on a mechanical drive, do those upgrades first. Graphics card matters too, but mostly for viewports and rendering.

For occasional small projects, 16GB is fine. For daily heavy assembly work, 32GB is cheap insurance. Future You will thank you when the model loads in five seconds instead of thirty.