The.. hell? Did you fail basic logic or something? You're setting up a false premise. Its like comparing a horse to a modern ALMS Race Car and saying you can only compare them at full tilt and no other comparison is valid. PCs and PC gaming is versatile, that is the strength. You are also not required in anyway to run games on a PC at full tilt, that is one of the strengths of the PC. The latest greatest prettiest graphics are there, if and only if you want them. Gameplay does not change depending on which level of AA you pick.
You are behaving as if having choice is a bad thing.
First, you don't need a CPU 'stocked with enough ram', RAM doesn't work that way. Second, games are GPU limited, not CPU limited. Your CPU can be a dual core anything and you don't have to worry about it. Nor do you need the latest and greatest hardware for a PC game, the gameplay does not change depending on which level of AA or Resolution you select.
And who cares how many games I can run at the maximum settings? A reasonable question would be how many games can I run that look better than the PS3.
Again, who cares? The question is "which PC games can I run that look better than a console game", the answer is "All of them that can look better."