New tech demos for the Unreal Engine 4 has been revealed during the GDC conferences, and this time we have one of them running in real time on a Playstation 4. Earlier last year we saw the same tech demo running on a PC equipped with at GTX680. You can view both videos below for comparison (the one at the top is the PS4 version). The third video is the latest PC Unreal Engine 4 tech demo.