I have a X470 Taichi Ultimate mobo and was wanting to know what would be a reliable GPU. I DO NOT do any gaming (I have no time) but I do some video editing, preferably 4K, mostly prosumer level and I create digital art and edit photos that may be gb's in size. I do not want a mediocre card or otherwise obselete but I cannot afford high end, so a decent one that would be optimal for this mobo. What is the highest model number that I can easily get away with.

I have looked at memory and it appears that I am restricted to 32gb or nothing more than 2666 especially if I want to gonw/ 64gb. The 2933 is not on the QVL practically for any configuration. I have 32gb of Corsair LPX (2 x16 @3200Mhz that I am sure will not work so I will have to sell it off and go w/ the most optimal.