Technical question - What happens if your scene takes up more room than you have G-RAM?
in The Commons
Hi, just curious, Some of my scenes are taking up close to the max GPU memory I have. What happens if I add more objects to the scene? Will the GPU start using my regular RAM?

Comments
If you have CPU Fallback or something like that checked, the render will be done by your CPU (it'll be many time slower).
If you don't, the render will not start.
If you're exceeding the RAM on your GPU then yes, the system will start using your system RAM and possibly start using the pagefile to continue loading objects. At this point, like Elor said, if "Allow CPU Fallback" is checked DAZ will use the CPU to render.
Best to try not to exceed the V-RAM amount, though, if you can.
To answer your question as others have posted please see the attached image.
Consider resource savers and scene optimizers to fit everything in your graphics card's VRAM (GPU). Most models and texture are made for close-ups and often most of the items in your scene do not need that level of detail. See all the links mentioned in these discussions.
https://www.daz3d.com/forums/discussion/comment/9352246/#Comment_9352246
https://www.daz3d.com/forums/discussion/445831/scene-optimisation-best-practices
Thanks y'all!