64GB RAM is worth it for heavy CAD work.

Yes, if your assemblies are genuinely complex — hundreds of parts, large surfaces, full renders.

AutoCAD itself isn’t the most RAM-hungry CAD software, but large 3D models eat memory fast. When you start hitting the swap file, everything slows to a crawl. 64GB gives you headroom to keep the whole model in RAM, plus a browser and maybe Outlook without choking. I’ve seen engineers with 32GB hit the wall on assemblies over 500 components.

That said, if your models are mostly 2D or small assemblies, you won’t notice a difference. The money is better spent on a faster single-core CPU and a good GPU (OpenGL performance matters more than raw CUDA cores for AutoCAD).

Bottom line: if you regularly open files that take more than 30 seconds to load, 64GB is a cheap fix for a frustrating problem.