Unless there's a game on ps4 you want in the near future. Get graphics card. If you're waiting like me for games a year or two down the line. It doesn't make sense to get ps4 when historically launch consoles have more hardware issues, and a dry spell. The graphics card you'd see full benefit right away.
However, if killzone strikes your fancy and then get that. Even then though it's not that big of a difference. Since most games will be on both. And it just depends what your overall specs are as to which looks better. With 770 Unless the ports are terrible, or your processor is terrible it would result in better looking multiplats, and old games would run better too.
With JRPGs PS3, or handhelds are the way to go and they're generally slow to migrate.
