46,225 mm2 of silicon is exactly 215mm x 215 mm which would fit inside a circle of diameter 304mm which would be larger than one 300mm wafer. If you look at the image above the corners are curved ...

In the past, it was super easy to find a block diagram illustrating that architecture on the Web. For Windows 10, I can't find anything. I've found subsystem diagrams, Windows 7 or earlier ...