>>388171470
>Nvidia need to make it something where developers don't have to implement it and it can just work by turning foveated rendering on or off
Braindead developers who need stuff like that wouldn't be able to get good performance even if nvidia provides such option. 
Consoles/mobile shouldn't have any inherent performance advantage, I see no reason why a proper implementation on PC wouldn't be just as efficient. The tools are already there.