780? Meh… GTX 560 runs it on full everything without a sweat.
It's just that the bloody game engine hammers one core in your CPU while leaving other 3 cores (or even more if you boutgh new 10 cores CPU) doing nothing. To avoid microstutters, you need to overclock CPU above 4Ghz.
Rogue may be graphical downgrade, honestly didn't notice. But definetly noticed that unlike Black Flag, Rogue works smoothly and doesn't need CPU overclocking. Apart from that, Rogue is a damned masterpiece in every way, Black Flag is completely irrelevant and forgettable game that should have remained on phones only and has no place on PC.
5 bucks for Black Flag, okay, go for it, it's not worth more than that. Rogue, any price, worth every penny!