Running Unraid, want to add a 2nd GPU so I can have a second gaming VM running at the same time.

My build is: 5900X Gigabyte Aorus Elite X570 3060ti RM650 Power Supply (6 HDD + 2 NVME) 1 pcie USB 3.0 card 5 fans

Would like to add my old 1060 6GB to it. I have it already, but if I were buying form scratch I’d probably get something lower power - only has to do decent 1080p gaming.

Is 650 watts gonna cut it? What’s the minimum I should bump it up to if I need to?