Funny enough so many Xbox fans are talking up Ark because they are doubling the framerate on that one game yet ignoring the fact that it's still staying at 1080p, it's not getting a resolution boost at all. This is undoubtedly the most powerful console but it does have it's limits.
It's almost like at least some of the people mentioning that are responding to very specific, repeated (so very repetitive) judgments about the CPU which, if they were correct, would lead to what was demonstrated with said game being impossible.