Microsoft are using Intel/Altera FPGAs in the datacenter, and not likely for mass produced devices like this. While it is possible they are using FPGAs for the

Microsoft are using Intel/Altera FPGAs in the datacenter, and not likely for mass produced devices like this. While it is possible they are using FPGAs for the Hololens Processing Unit, I seriously doubt it. The FPGA needed to exceed the performance of a high-end mobile GPU (OpenCL/CUDA for Deep Learning/AI) would have an excessive power consumption for a mobile device. Another factor is that higher end FPGAs are expensive ($200+ wholesale) and typically cost thousands each, and not suited to a mass produced consumer device. As for who made this HPU, I'd say AMD helped design it and GlobalFoundries (or maybe TSMC) are doing the production.