Tak dokumentaci primo od Microsoftu snad verit budes:
"Direct3D 12 does not replace Direct3D 11. The new rendering features of Direct3D 12 are available in Direct3D 11.3. Direct3D 11.3 is a low level graphics engine API, and Direct3D 12 goes even deeper."
https://docs.microsoft.com/en-us/windows/desktop/direct3d12/what-is-directx-12-