DT and large PDFs (and PDFs in general) -- does more RAM mean smoother handling?

I often have quite a few large PDFs open at once, and my pretty wimpy MBA gets overwhelmed. I’m planning to upgrade soon. Does anyone know if PDF handling is better the more RAM you have? Specifically, would I notice the difference and be able to have more large docs open at once with 16GB vs 8GB? I’d be getting a 13", so it’d be integrated graphics if that’s relevant.

Thanks in advance.

More RAM is always better. Will it improve the PDF handling? Only if you’re currently running out of memory and virtual memory is used (see Applications > Utilities > Activity Monitor.app).