PS3 can't handle large scale fights/fates (not the ones we have now I mean really large ones), larger cities more npcs, larger maps, higher resolution of textures etc. It does affect the PC. So there is a relation between gameplay and graphics. Graphics is not only about beauty. When the PS3 support finally drops for good both PS4 and ofc PC will be free for improvements. Maybe then we can get higher res textures or larger battles/dungeons and more detailed maps.