Kinect had 10% of the GPU bandwidth reserved for it: http://arstechnica.com/gaming/2014/06/microsoft-software-update-unlocks-more-gpu-bandwidth-on-xbox-one/ htt

Kinect had 10% of the GPU bandwidth reserved for it: http://arstechnica.com/gaming/2014/06/microsoft-software-update-unlocks-more-gpu-bandwidth-on-xbox-one/ http://arstechnica.com/gaming/2014/06/microsoft-software-upd... Meanwhile, the OS on an Xbox One eats 3Gb of RAM, even when games are running: http://arstechnica.com/gaming/2013/07/report-os-overhead-takes-up-3-5gb-of-ps4s-8gb-of-ram/ http://arstechnica.com/gaming/2013/07/report-os-overhead-tak... PS4 has a similar memory overhead for the OS. Modern consoles are nothing like the old-school ones where once a game was running it had nigh on total control of the underlying hardware.