The PS3 and Xbox 360 ended this generation neck-and-neck in terms of sales. This is because, in the end, both systems provided a similar gaming experience. Aside from the argument of exclusives, the only major advantage the PS3 really had over the Xbox 360 was the vast storage capacity of Blu-ray discs. This generation, Microsoft caved in, and the Xbox One has adopted Blu-ray. However, Guerrilla Games -- developer of the upcoming Killzone Shadow Fall -- claims that the original build of the game was 290GB in size because the PS4 is powerful enough to build textures that high-res, whereas competing systems are not.