Hey I'm in the same boat here. Trying to squeeze some more 4K power out of my 2010 Mac Pro 5,1 with some upgrades. Does anyone have experience with the Nvidia 1070 or 1080?
They will work with the Nvidia Mac driver? Or do they have to be flashed?
Also considering the Sapphire PULSE RX580 8GB. This will work without flashing?
I'm a video editor and use both FCP X and Premiere Pro, and I prefer FCP X.
But often my 4K work is in Premiere Pro due to client, so I'm exploring Nvidia options and price ranges too.
It's a hard decision. For PP, 1080 work better.
But for FCPX, RX580 is clearly much faster.
If you do 4K in PP more, then may be 1080 is the way to go. Especially if your rarely update the OS (as long as it's working), then web driver won't bother you much. However, if you prefer to keep the system always up to date, and install even single minor security once available, then the web driver may give you some pain.
Occasionally, some members here accidentally let the Mac installed the security update automatically (when no web driver available yet), or Apple may force update some important security update (without acknowledging the user). Then the Mac can only boot with black screen and doing nothing. Even with flashed card, still won't help without web driver. It only make you easier to know what's happened or recovery from backup etc. Web driver is a requirement to make the card work properly. If you install the OS update before web driver available, then you can either wait or recover, no way to make it work (of course, you can always swap another OOTB GPU back in as temporary card to use).