The PS4 won the race against the Xbox One by miles, as the Xbox could not compensate Microsofts mistakes before and during launch. Thus, it was expected that the platform will be expanded as usual. The PS4 Pro is still a novelty: it does not only change size and power consumption, but instead offers more power through a new architecture, new CPU/GPU units, more and faster RAM and more. This enables UHD-gaming among other features like better graphics and framerates. Many newer games were optimized for the Pro without sacrificing full compatibility among the different versions of the platform. The Slim was released based on the original systems shortly after.