You can use just two GPUs if the host is running a virtualization manager like Proxmox. I currently run a Windows gaming VM and a bunch of Linux VMs on top of

You can use just two GPUs if the host is running a virtualization manager like Proxmox. I currently run a Windows gaming VM and a bunch of Linux VMs on top of Proxmox using a single GPU. Planning to add a second GPU for transcoding in the near future.