Sony working on a new version of the Playstation 4 stating that it has 'independently established that the PS 4.5 or PS 4K is real and Sony's R&D labs have prototype devices said Eurogamer.
The site also hinted that the new console will "almost certainly use an evolved version of the APU technology," while earlier reports by Kotaku added that an upgraded GPU is likely, to support more graphics processing power and possible high-end 4K resolution for games.
While specific details are not yet known, reports indicate that the upgraded GPU could also boost the console's capability to enhance the games supported by PlayStation VR, the headset Sony will launch this fall.