Sony is rumored to unveil upgraded PlayStation 4 with 4K support

According to a new report coming from some unnamed "developer sources", Sony has started working on an upgraded version of its PlayStation 4 gaming console. This new iteration won't be a totally revamped offering like a PS5.Instead, it will have more GPU power than the PS4, in order to be able to support 4K gaming. Sony has already started briefing developers about it, the report goes on to say.