Currect gen or next gen? This is maybe the most important question for those who want to buy the next-generation console, but they are willing to play the game right from it’s release day. In case of gameplay we can only see just graphical changes in Assassin’s Creed IV: Black Flag. The FPS rates are different as the resolution, because on Playstation 4 you cna play this game with 1920x1080px resolution at 60FPS.
These changers are not make the two system about this game different, just a bit.
If you are going to pick up Assassin’s Creed 4 for Playstation 3 you will be able to get the next-gen version by going back to the shop with your current-gen game and giving it back with an extra 10 bucks additional fee.