Hi @Mat please see this extensive testing from @rbs_sci https://discuss.cryosparc.com/t/cryosparc-benefits-from-more-gpu-vram-or-processing-power/15696/12?u=mark-a-nakasone
I have never used less than 24GB of vRAM, but I also look at $nvtop and some logs, but rarely do I even get close to using all of it.