Epic Games has used GDC to showcase its capabilities of its Unreal Engine 4.22 with ray tracing enabled. The demos, powered by a single Nvidia GeForce RTX 2080Ti, demonstrate jaw-dropping realism that could easily be confused for live action film.
https://www.notebookcheck.net/New-Epic-Unreal-Engine-demos-highlight-the-power-its-ray-tracing-tools-for-creating-photorealistic-graphics.414824.0.html