Microsoft HoloLens Processing Unit

Holographic Processing Unit uses 24 customized Tensilica DSP cores

How do you run a trillion pixel-operations/second with a power budget of less than 4W?  For the HoloLens, Microsoft solved this problem by using 24 highly optimized processors tuned to their algorithms, achieving a speed up of 200x over software running on standard processors. Details of the HoloLens Processing Unit are closely held, but the end result is something you can easily get around your head.

The HPU was designed by Microsoft using the same Tensilica technology as the battery-powered Epson GPS watches, showing that if power efficiency is your goal, customizing a processor will take you much farther than something off-the-shelf, and in whichever direction you need to go.