DirectX 12 Ultimate is the new gold standard for gaming graphics on both PC and the next generation of Xbox consoles:
DirectX is a technical tool that helps game developers interact with sound and graphics cards. Although it can be installed on any computer, most users won’t ever need it. It runs when you play a game made with DirectX and that’s it. You’re only going to need to get to know it better if you want to program with it yourself. It has one of the most agile runtime processes amongst this category.
Reference
https://devblogs.microsoft.com/directx/directx-12-ultimate-for-holiday-2020/