In the days leading up to the RTX series's review day, yet another leak has emerged on performance. The RTX 2080 and 2080Ti have been tested on Final Fantasy XV's built in benchmark.
https://www.notebookcheck.net/Nvidia-RTX-benchmarks-come-out-on-Final-Fantasy-XV-benchmark-2080Ti-30-faster-than-1080Ti.332698.0.html