Thank for this information i have see Reshade and the possibility to use the RIS (named CAS) in Reshade, i think i try it in few days.
But reshade not used the FP16 RPM and i have see most impact in performance.
Reshade is relly a good soft i think, but if AMD can deploy RIS for Vega 56/64 Video card and add support for DX 11 game with RIS, i think it's really good for all player with Radeon solution.