https://www.pcgamer.com/heres-how-battlefield-5-looks-with-nvidia-rtx-effects/

At its Gamescom event today, Nvidia announced the new GeForce RTX line of graphics cards, which are available September 20—just in time for holiday game releases, including Battlefield 5. At the event, Nvidia and DICE showed off what can be done with the Turing GPU architecture and real-time ray tracing in Battlefield 5, namely with regards to reflections.

With the help of Nvidia's real-time ray tracing tech, DICE is able to reflect explosions, fire, and the surrounding environment dynamically, emulating the surfaces of water, glass, and cars while taking into account the angle at which the player is viewing them. The clip below shows off how a flamethrower looks with RTX enabled and disabled: