This does not need RTX to run this my Nvidia GTX 1050 works fine.
Procedural Landscape from Shader Graph w/ Geometry Clipmaps BP/C++ | Download - Development Discussion / Unreal Engine 5 Early Access - Unreal Engine Forums
I have downloaded and built this with my repository VS2022 Preview and VS2019, even from the zip file. There is a GitHub repository to back it up. The BP is in C++, so that should be interesting and it still plays in the editor. All the Shaders are built on opening the project.