Ray Tracing Graphics Card. A good graphics card can use ray tracing to enhance immersion, but not all GPUs can handle this technique. These graphics cards are also expensive and put ray tracing out of range of most gamers unless they were willing to splash out for cutting edge tech.
GPUs that can handle ray tracing. But when Ray Tracing is on, you will sacrifice some FPS depending on your graphics card. The Real-Time Rendering Ray Tracing Resources Page, which includes a free chapter on the basic ideas behind DXR and interactive ray tracing.
A tree-based ray tracing acceleration structure called a Bounding Volume Hierarchy, or BVH, is used to calculate where the rays and triangles intersect.
Technically, any graphics card can render ray-traced graphics, but most lack the hardware that will allow them to render those graphics at a decent frame rate.
A good graphics card can use ray tracing to enhance immersion, but not all GPUs can handle this technique. Nvidia has officially unveiled GeForce RTX ray tracing support for Minecraft. Traditionally a very processor intensive operation, the new cards ensure reflections in puddles and light shining.