So I got this working. I disabled in esx the svga adapter and passed through all my pci devices. I changed the pci hole to 3072 and installed the latest intel drivers. As a result the esx host no now longer sees the windows console as it's essentially headless. Gpuz verified it's working and CPU load has dropped from 60 to 90 down to 30-40.
I'll test the hdmi out on the board tonight to my 75" TV.
Hopefully that works as expected and I can use my home automation system to view the cameras via hdmi when needed.
Great win