The Frigate website seems to heavily recommend a Coral card to offload the bulk of the processing from the CPU.
EDIT: looks like CPU still used for video decoding regardless of Coral being available: https://docs.frigate.video/frigate/hardware/#do-hwaccel-args...
I have about a dozen 4k cameras I'd love to migrate to a much more capable NVR, but doing so with software typically means I go from a 30W NVR to maxing out a 8 core 200W Xeon even without object detection.
Would love to kill my Duaha NVR and toss this on the Proxmox cluster instead.