Fsr4 is about picture quality improvement using upscaling instead of software solution that's fsr3Can get 146 fps at extreme settings native in MW3 and 134 fps in BO6.
Also about 70-80 fps in Avatar at Ultra FSR Quality setting.
But I have tweaked it in Adrenaline to get another 10-14% out of it depending on the game.
I will be missing out on FSR4 if I don’t upgrade but not sure how widely it’s going to be implemented to be useful in games (also whether it is actually needed- in my case 100 fps at supreme in Indy Jones is great and no need for upscale).
I’m conflicted and very confused at the moment.