You can't ever make like-for-like comparisons from PC to console. Developers always manage to squeeze much more out of a console than they can for a PC.
yip, consoles usually have less overheads eg, an os that uses less memory than conventional pc operating system and less background processes but this new xbox is running 3 friggin operating systems, which makes me wonder how much ram will be available for games and how much processing power also, remember the ps4 is already confirmed to be faster gpu and memory wise and im sure its OS is also using less resources
The gaming layer of the XBOX is a dedicated operating system that doesn't change for the lifetime of the console. The third OS is a weird bridging thing that I'm not sure about. The other OS is a completely separate Windows. I'm fairly positive that it won't try to run all 3 in a stack. But yeah, PS4 has quite a bit more raw power available - the gpu is close to a 7870, and it uses ddr5 ram whereas XBOX One is a 7790 with ddr3 ram.