Unreal Engine 4 needs lots of processors
Rein talks "massively multi-core" systems.
Epic Games' Mark Rein has explained that Unreal Engine 4 simply would not work on the current flock of machines.
"Unreal Engine 4 is designed for the day we get massively multi-core processors," he told Kotaku. "[It's] still a long ways off."
Rein told Eurogamer in 2008 that UE4 was merely a "research project" at the time and that the studio's plan was to aim it at the next generation of consoles "so it is many years away".