So what confuses me, is in the first post here it says:
"To be clear, the stock Apple drivers now contain basic support for all currently-shipping cards. This means that you no longer have to swap out the card when doing a Software Update to the next OS version."
and...
"As mentioned above, all stock OS drivers from Apple will now make stock NVIDIA PC cards work.
If you have installed a web driver from NVIDIA, it is likely that the OS update from Apple will overwrite them. Now that the stock drivers from Apple will still let your card function, this is not a deal breaker."
That tells me ALL stock PC cards should at least boot with basic video support.
But then, further down, it says:
"Here's a rough list of when new cards started working.
- GK110B (GTX 780, GTX 780 Ti etc) needs 10.9.2 and 331.01.01f01
- GM107 (GTX 750) and GM204 (GTX 970, GTX 980 etc) need 10.10 and 343.01.XX.XX
Note that these Maxwell GPUs will not work with the stock Apple drivers, so you must install the NVIDIA web driver first."
So, first it says ALL PC cards offer OS-level support, then it says certain ones do not work.
Now, I realize many people here are experts and know what does and doesn't work, but for me, reading the first post is very unclear.