I’ve read the thread but it only lists 2 cards which aren’t on eBay in Mac format. I see some people using the RX680 and the Radeon 7950. Which is better the NVIDIA or the AMD? Any card that supports metal will work with Mojave? I did find a RX680 but it looks very different from the others I’ve seen. It’s manufactured by MSI. I’ve been out of the computer hardware loop for a long time. I left Windows machines and went iMac back 2007 and now I’m moving to a MacPro mid 2010. So please forgive my ignorance.