4K ultra is very much not the intended playground for the RX 7700 XT, at least not if you're playing recent and relatively demanding games. If you're looking to play through Half-Life again, though, that's a different matter. Again, we're only going to provide very limited commentary here, so enjoy the charts at your leisure.
The RX 7700 XT averages just 32 fps across our 15-game suite at 4K ultra. As you can imagine, that means some games (hello, Cyberpunk) are almost into the single-digit framerates. The extra VRAM compared to the RTX 4060 Ti does widen the overall gap to 14%, but all six ray tracing games fail to hit 30 fps. The rasterization games, on the other hand, all manage at least 30 fps, though Total War: Warhammer 3 and A Plague Tale: Requiem just barely hit that mark.
Of course, there are other ways to make "4K" gaming accessible, like FSR 2 and DLSS upscaling. If you run FSR 2 in Performance mode (4x upscaling), you're basically taking 1080p and upscaling it to 4K. The performance for FSR 2 upscaling in that case is generally around 20%, give or take, which means plenty of games can still clear 60 fps. But upscaling isn't quite the same as native 4K, I'm sure most people will agree.