No. It is possible to use ray tracing without an RTX graphics card. Ray tracing can be implemented using hardware with any GPU above the NVIDIA 20-series, but also with any older hardware, too. However, ray tracing’s performance is completely dependent on the hardware capabilities of the system, so it isn’t practical to use ray tracing on a system that wasn’t specifically made to do so. Both NVIDIA and AMD offer competitive ray tracing performance in any ray tracing enabled game, so it is easier than ever to find a good graphics card that is ready for the challenge.