Taken from Kotaku........Our contacts have told us that memory reads on PS4 are 40-50 per cent quicker than Xbox One, and its ALU (Arithmetic Logic Unit) is around 50 per cent faster. One basic example we were given suggested that without optimisation for either console, a platform-agnostic development build can run at around 30FPS in 19201080 on PS4, but itll run at 20-something FPS in 1600900 on Xbox One. Xbox One is weaker and its a pain to use its ESRAM, concluded one developer. Sorry but that's the facts........ Lol