These days you can find RTX-branded GPUs in almost all price segments. The GeForce RTX 2080 Ti is the highest tier consumer GPU that Nvidia currently sells. We have got a review unit from KFA2. Read this review to find out how well KFA2's RTX 2080 Ti performs.
https://www.notebookcheck.net/KFA2-GeForce-RTX-2080-Ti-EX-Review-High-end-Nvidia-GPU-with-a-custom-cooling-solution.437559.0.html