This is a Microsoft DX12 DXR API driven solution, not Nvidia's. Nvidia may have certain RT performance optimizations [advantages] at the driver level on getting more performance out of its RT cores for the PC, but this wouldn’t have any bearings on how RT is implemented into the consoles. If anything, Watch_Dogs Legion RT implementation on the XBSX should be straightforward due to the DXR API. Any RT performance disadvantages or visual discrepancies that the consoles may have with UBI’s RT solution will either be hardware related (AMD GPU RT performant issue), or game engine related. This has nothing to do with Nvidia, or how it handles RT.