Unfortunately, the currently most powerful consumer graphics card is not enough. The outstanding graphics of Minecraft and the ultra-high-resolution and diverse textures fill the 11GB of graphics memory at lightning speed. Furthermore, the fastest card by far currently simply doesn't clock high enough to offer you a smooth gaming experience with at least 2000fps. Ray tracing, as we can now safely say, is a pipe creperie anyway, so it shouldn't even be a factor in the purchase decision.
Instead, I recommend two Tesla V100s in SLI/NVLink (
PNY Tesla V100 Module, 32GB HBM2, PCI-E x16 (Professional),) so you have a whopping 64GB of Vram for your 8K texture mods and can train your 20 layer deep neural nets while gaming (in parallel!).
It also costs significantly less than a real Tesla, so it's a real bargain :)