By far what we know there's only one GPU manufacturer that supports Ray Tracing and that is NVIDIA.
With the Turing generation, Nvidia has brought one technology in particular to the fore. Built-in tensor and RT cores enable real-time raytracing in games. Real-time raytracing allows even more realistic images and, for example, realistic reflections. The technology differs greatly from the otherwise used raster rendering and requires significantly more hardware performance, which Nvidia provides, among other things, through the tensor and RT cores.
This excludes the second major manufacturer in the GPU sector. AMD does not (yet) have any graphics cards in its program that are equipped with raytracing hardware and is therefore at a disadvantage. Currently the feature is still of questionable use, but in the future raytracing could definitely play a big role. According to AMD’s own statements, however, the technology will only be supported by the manufacturer if even the smallest graphics cards can handle it. Raytracing is therefore not currently on the company’s agenda. But as AMD itself has confirmed, raytracing is already possible via a fallback function of Microsoft’s DXR.
According to AMD, Only cards that support DX12 will support Ray Tracing via DXR Fallback layer.
The only graphics card that currently masters fallback layer raytracing is the Titan V from Nvidia. It doesn’t have RT cores, but it does have tensor cores and is therefore capable of remarkable raytracing performance in Battlefield V.