Both next-generation consoles may be powerful pieces of kit, but both companies are reserving quite a bit of resources just to keep the operating system running. Xbox One reserves 3GB of RAM for its OS, and also holds on to 10 percent of GPU resources. Why? To run Kinect and apps while you play games.
"Xbox One has a conservative 10 per cent time-sliced reservation on the GPU for system processing. This is used both for the GPGPU processing for Kinect and for the rendering of concurrent system content such as snap mode," Microsoft technical fellow Andrew Goossen told said.