Here is a quick update:
model-id: MacPro6,1
board-id: Mac-F60DEB81FF30ACF6
Just so that you know what to use 😉
Edit: More new board-id’s…
Mac-35C1E88140C3E6CF – MacBookAir6,1
Mac-7DF21CB3ED6977E5 – MacBookAir6,2
Mac-031B6874CF7F642A – IGPU (Macmini7,N)
Mac-189A3D4F975D5FFC – IGPU (MacBookPro11,N)
Mac-3CBD00234E554E41 – IGPU (MacBookPro11,N)
Mac-27ADBB7B4CEE8E61 – IGPU + NVIDIA (iMac14,N)
Edit 2: I found two more in ApplePlatformEnabler.kext
Mac-4BFAC7A2B9455938
Mac-6F01109E16C71B86 – IGPU
Edit 3: The Mac model identifiers in red are what I believe the next model identifiers. This based on the (absence) of the PublishBatteryFactors property and the power management data where the iMac traditionally has little to no PM feature support.