PlayStation 4 processor has eight cores, but game developers are able to use only six of them, while the remaining two are reserved for the needs of the operating system. Similarly is for Xbox One, but some time ago, Microsoft allowed to use the seventh core in the hope of improving the performance of the games console .
According to TweakTown site, citing the forum NeoGAF, Sony unlocks the 7th core . This is indicated by changes in the list of low-level API: "LowLevel API - PS4 - Added FMOD_THREAD_CORE6 to allow access to the newly unlocked 7th core."
How this will increase the speed of set-top boxes, it is difficult to predict. In the case of Xbox One additional resources brought no significant effect. Sony itself does not comment these rumors, .