Q: "The wiki seems a bit out of date (recommending GeForce 200 or higher - which is no longer supported by nividia drivers). Can someone recommend the 'best' nvidia card for video decoding including hardware based h.265 and dual head output? how about Nvidia GTX 1060 (Best = opionion)"
A: I'd recommend this wiki entry:
https://en.wikipedia.org/wiki/Nvidia_PureVideo
Especially section:
https:...
More
Software
Disc Solutions
Convert Video & Audio
TV
Consoles/Storage/Server
Media Player
Non-linear editing system
Potable Device