Une des tête d'Avalanche Studios (Just Cause) nous parle de la différence de puissance entre les 2 consoles, et nous explique que le gpu de la Ps4 gère du 64bits pour le rendu et la One doit se contenter du 32bits.
http://gamingbolt.com/ps4-gpu-can-handle-64bit-path-xbox-one-must-render-32bit-to-avoid-bandwidth-issues
" He talks about how the PS4′s GPU can handle a 64 bit path until bandwidth issues arise while explaining why the Xbox One will need to stick to a 32bit path."
“Unless the output format is wide, we are not even theoretically capable of using the full bandwidth available. For the HD7970 we need a 128bit format to become bandwidth bound. For the PS4 64bit would suffice.”
“On the XB1, if we are rendering to ESRAM, 64bit just about hits the crossover point between ROP and bandwidth-bound. But even if we render to the relatively slow DDR3 memory, we will still be ROP-bound if the render-target is a typical 32bit texture.”