I recently got this wonderfull 5K display (Samsung C49RG90, 49", 5120x1440, 32:9, 109dpi), but my base system is totally outdated (Intel I7-4770K, Nvidia GTX 980TI) and not able to run 5K on a decent level. I already decided to switch to AMD for CPU, Ryzen 9 3900X looks like a good choice, plus 32GB RAM . But I am clueless about the grafics card. I am aware the Nvidia is still on top in this field but I'd like to try AMD there too. Any suggestions?