https://www.xda-developers.com/running-proxmox-vms-with-gpu-passthrough-is-much-easier/
You even have a few methods to choose from
runningproxmoxvmsgpupassthrough
https://www.servethehome.com/new-nvidia-quadro-vdws-up-to-4-gpu-vms-and-vgpu-live-migration/
At GTC Europe 2018, NVIDIA Quadro vDWS and GRID received some major new features. We highlight the big changes coming to the NVIDIA vGPU products
nvidia quadrogpu vmsnew