NVIDIA Web Driver 378.05.05.05f01 CUDA Driver 8.0
I hope that you're using a MacPro. Model identifier should be Mac Pro 5,1 (2010), Mac Pro 4,1 (2009) or Mac Pro 3,1 (2008), if you're doing a Hackintosh, all bets are off.
Pascal? Are you referring to MacOS 9? Please clarify. I got the driver information from NVIDIA site, and it says Sierra supported with the models above.
Pascal is the latest Nvidia series of cards. The GTX 750 ti is a Maxwell series.
When using non-Apple approved video cards in various model Mac Pro's (1,1; 2,1; 3:1, 4:1, 5:1)...you're really getting into a territory that's a much more experimental sort of thing. And when talking the lastest & greatest (such as what's mentioned above)...the number of user's with an older Mac Pro installing the latest & greatest Windows video cards in them is very small (you may be one of the very few folks trying it).
The best thing to do is purchase the card & install it...and see if it works. If you can't get it to work...return it (of course making sure it is purchased from somewhere that it can be returned if things don't work out).
HTH,
- Nick
Sounds like your question in post #1 is answered!
- Nick
Thanks. I know. Thought I would post the answer for others.