Extend your VRAM using RAM, then extend your RAM using Swap.
And burn the swap pagesys file to a rewritable DVD to complete the cycle. It will be super fast that way.
If you are doing video models, this is an excellent way to murder your SSD.
Do not put swap on an SSD you care about at all.
I’m gonna build a zfs raidz2 on floppy disks to catch the overflow