The leaks show it more than 15% faster, well Nvidias own slides!
And with DLSS 3? If it wasn't much faster I'd get a 3090Ti and marvel that I've got a last year's flagship beast
With DLSS 3 yes but going by the DF video there are some clear shortcomings with it atm (latency and interpolation artifacts being the biggest), this may improve over time.
In straight raster performance in MS FS i'll give you it was faster but in Plagues tale it was 9% so on average 15% is prob where it will land.