Pure speculation: 28nm masks and manufacturing are significantly cheaper than 16FF and newer, which likely helps meet the cost of HoloLens at the volume they're

Pure speculation: 28nm masks and manufacturing are significantly cheaper than 16FF and newer, which likely helps meet the cost of HoloLens at the volume they're forecasting. Moving to 16ff or Intel's 14nm allows more for processing cores at a fixed die size, but also makes it more expensive. There's a reason it's called the bleeding edge. :)