Borderlands 3 - DX11 - 4K
If you thought 1080p and 1440p was hard on graphics cards in Borderlands 3 -- 4K is the real MVP. $2499 won't even be enough to give you 60FPS average, with NVIDIA's flagship TITAN RTX and its 24GB of GDDR6 and full Turing GPU only offering up 50FPS average.
NVIDIA's GeForce RTX 2080 Ti isn't far behind with 47FPS average, and then it drops right off - the closest to the RTX 2080 TI is the RTX 2080 SUPER with 38FPS average. AMD's best -- the Radeon VII only hits 32FPS with its 16GB of HBM2, while the new Navi-based RX 5700 XT is 1FPS better at 33FPS average.
NVIDIA's previous-gen GTX 1080 Ti isn't bad here with 35FPS average, beating out everything AMD has on offer -- while the RTX 2070 is required to hit just 30FPS at 4K on Borderlands 3