The sony playstation4 offers a considerably more powerful version of the basic PS4 architecture, and a higher spec than the Xbox One S. The central processing unit has had a 30% speed boost from 1.6GHz to 2.1GHz, while the graphics processing unit has leapt from 1.84 TFLOPs(trillion floating-point operations per second) in the original machine to 4.2 TFLOPs, a substantial lift in performance. This is all necessary to render game visuals – and run streaming video – at ultra HD 4K resolution, rather than the 1080p HD resolution supported by older models. This is basically what sony PS4 is all about – improved graphics fidelity.