Not content with having a the Surface Pro 4 being a tablet that works like a laptop, Microsoft announces the Surface Book - a brand new ultrabook with a 13.5-inch screen. It is presented as the most powerful 13-inch laptop around, with the latest Intel processor and Nvidia discrete GPU, which gives it twice the performance of rivals like the Macbook Pro.

Its screen supports 267 PPI, and they system promises 12 hours of battery life. The laptop is designed specifically for power users, and can run games like Gigantic and Gears of War.

The Surface Book features a detachable screen for alternate viewing modes, or it can be used as a tablet. The solid keyboard base houses the Nvidia descrete GPU. The base features a backlit keyboard, two USB 3.0 ports, and a full sized SD card.

Starting price for the Surface Book is $1,499, and will be available in stores starting October 26th. You can pre-order starting tomorrow, October 7th. 

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