The Xbox 360 had different Gen's, they wouldn't upgrade it's hardware, thats what the Xbox one it is the update/new console. No console keeps up to date with hardware, now both the Xbox and PS4 have been upgraded after how many years. The slim, Arcade, Elite had pretty much the same hardware due to having to make sure that the newer gens like the Elite's and Slim's hardware didn't out scale it's previous gen consoles, or you would find that the xbox 360 games may not work on the older gens only then new. so now that this console is coming out you can expect Xbox One Games not the xbox 360's.