To clarify, there are still advantages to 12nm, in that the speed of light allows the 12nm transistor chip to be faster (all other things being equal) than the

To clarify, there are still advantages to 12nm, in that the speed of light allows the 12nm transistor chip to be faster (all other things being equal) than the 28nm chip. However, there are limited uses for that speed at this point, which bring into focus cost/performance. Further, part of bringing costs down involves efficiencies of scale. If you don't have the scale, the price will limit the output. It might be back to the supercomputer world for those who need that particular extra bit of speed.