EVGA GTX 760 Is working In Mojave, and worked well standalone pre upgrade. Tried NVS600 from PNY and High Sierra said it was Metal Capable but couldn't get a good screen to upgrade without having my GT120 card installed that isn't Metal capable. BFG GeForce 210 was indicated in High Sierra as Metal capable but I couldn't also get it to stand alone in the upgrade. I didn't try any injection or NV commands. I haven't tried any of the GTX 250 cards I have, yet but do plan to see if they are capable.