It's entirely possible to stick with Nvidia's high-end RTX 3000 series GPU at 3440x1440, 5120x1440, or even 4K, but the problem you might run into is the need to adjust your in-game graphics settings.

Hitting the market at £369, but having been as low at £290 over the last few weeks, this is a budget ultrawide monitor sporting a curved VA panel, 165Hz refresh rate and 3440x1440 resolution.