Microsoft Surface Book i7 packs a bigger punch and more batteries

Microsoft has refreshed part of its Surface Book lineup. The company announced the Surface Book i7, an updated model packing new graphics hardware and Intel Core i7 CPUs. The device's internals have been reorganized for better thermal performance, and to open up room for a second fan and additional battery capacity. Microsoft claims battery life is up 30% compared to the original i7 Surface Books. This improvement translates to a stated 16 hours of battery life on a single charge.

Microsoft isn't naming the new graphics card, but the video accompanying the product announcement shows a Nvidia graphics chip marked "N16E-GR-A1," suggesting the GPU may be the 2016 refresh of the GeForce GTX 965M. Microsoft says the new card ought to offer "twice" the graphics performance of the GeForce 940M card inside the old model.

The new machine packs the same 13.5" 3000x2000 pixel 10-point multi-touch screen seen in the original Surface Book. Wireless connectivity should come in the form of a 802.11ac Wi-Fi and Bluetooth 4.0 combo. Buyers can preorder the Surface Book i7 now for $2,999. Microsoft expects to deliver the machines in November.

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