Over the past weekend there were a few leaks of gaming performance benchmarks of the NVIDIA GeForce RTX Ti. These mainly come from Turkish YouTuber, PC Hocasi TV, who put up a video going over his benchmarks then quickly took it down. Based on these results 3DCenter went ahead and made a nice graph showing the performance difference between the new RTX 2080 Ti and the GTX 1080 Ti. Looking at these results the RTX 2080 Ti is 37.5% better as far as the average FPS goes and ~30% better on minimum FPS.
These numbers are in line with most expectations for the RTX 2080 Ti. For those interested below you can find screenshots from the YouTube video before it was taken down.