Quick Answer
16GB of RAM is enough for most typical or medium-sized AutoCAD and SolidWorks projects. But if you work with large assemblies containing thousands of parts, do heavy rendering, or run several programs together (CAD plus a browser plus Excel), you will want 32GB to avoid slowdowns and freezing.
What Actually Determines Your RAM Needs?
- Project size: A simple 2D drawing or a small assembly will not use much RAM, but an assembly with thousands of parts (like a complete machine design) consumes far more.
- How many programs run together: If you work in CAD while also keeping a browser open with dozens of tabs, plus Excel and a communication app like Teams, all of that competes for the RAM available to your main program.
- Type of task: Rendering, simulation, and finite element analysis (FEA) need far more RAM than simple drawing and editing.
When Is 16GB Enough?
If your work is mostly 2D drafting, designing individual parts, or small to medium assemblies (up to a few hundred parts), and you do not do heavy rendering or simulation daily, 16GB of RAM will be more than sufficient and you will not notice meaningful slowdown.
When Do You Actually Need 32GB or More?
If you work on large engineering projects (factories, complete buildings, complex machinery), do high-quality rendering, run FEA or CFD simulations, or keep several programs or projects open at once, 32GB will make a real difference in speed and in reducing freezes. In some extreme cases (very large projects or complex simulation) even 64GB can be worthwhile.
RAM Is Not Always the Real Bottleneck
Before adding more RAM, make sure the CPU and GPU are also suitable for your work. A graphics card officially certified by the software vendor (ISV Certified) makes a bigger difference in stability than RAM alone — read the details here: What Is ISV Certification and Why Does It Matter for Workstation Laptops?
Bottom Line
16GB of RAM is a reasonable starting point for most AutoCAD and SolidWorks users, but if your work regularly involves large projects or rendering and simulation, investing in 32GB will save you time and frustration in the long run.
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