Nvidia has introduced beta drivers for all their pascal-series line up of their graphic cards to the MacOS environment. With the release of these new beta drivers, all graphic chips beginning with their lowest-end 1050 up until the latest Titan Xp cards will now be supported on the Apple desktop environment.
Until now, MacOS enthusiasts who insisted on building a system of their own(a Hackintosh) instead of shelling hard earned money to Apple's coffers, were relying on Nvidia's previous generation Maxwell series graphic cards for day to day graphics usage. With the addition of the latest Pascal chips, all Hackintosh users can now peacefully replace their obsolete (to an extent) hardware with the latest models.
Details from MacRumours reveal that Nvidia has stayed true to their word and has now come out with dedicated beta drivers for the Apple ecosystem.
The last time Apple offered users with the options of hardware replacement, were on the 2013 Mac Pro edition which ironically, is still the only mainstream desktop from the Cupertino firm. Meanwhile, people using external graphics docs connecting them to Apple hardware through a thunderbolt port can now make use of some high-end graphic cards like the GTX 1080 or even the Titan Xp for that matter.
Apple some time back assured mainstream desktop users that they had planned something for this year, which rumors point out to be either the refreshed variants of the iMac all-in-ones or the aforementioned Mac Pro.
However, Apple's primary choice of graphics for their products has been AMD for some time now which might not really change for the better or worse since Nvidia chips are arguably expensive over that of their competitors. Since Apple likes to keep everything under closed doors, it's hard to foresee whether Apple will likely change their decision and instead change to Nvidia for the upcoming products in September.