Next gen consoles certainly are not overpowered. My 1 year old gaming laptop is about twice as powerful. It cost a lot more, and I get the value for what you pay is great with consoles, but still they have mid to low end components before they even release.

Also w/e multiple things you were saying the consoles can do, the pc have already been able to do for about a decade now and plus several dozens things consoles cannot do. So those arguements are just flimsy marketing hype.

@jeffgoldwin
In theory it would seem your PC is a beast and you can do everything PS4 can and more without issues like a console offers (by that I mean usually no errors with the system during gaming). BUT I would bet that if we put a PS4 with lets say Gran Turismo and any other racing game on PC, you would then realise PS4 isn't as bad as PC gamers want it to be. Not only do consoles usually push the power the hardware offers to the best they can but the OS helps a lot. You also gotta keep in mind the devs are the ones making the games on both platforms so your PC isn't using its super powerful hardware playing Call of Duty, Saints Row, Need for Speed, etc. It probably will look slightly better but not a HUGE difference like PS2 & PS3. Know what I mean? At cost of that you have it all for $400 or less (depends where you buy it) and all the goodies a console offers because of it having exclusive features and what not. And add PS+ and you have a wonderful gaming system! If you have the money and I mean myself too, I'd buy the best PC I could and would enjoy it as much because in certain cases games DO look way better and you enjoy a computer which offers things a console doesn't aside from the gaming aspect.

That's because the over-powered next-gen consoles is not just about gaming.

If you are dedicating your PG to just gaming "alone" 4GB should work perfectly.