It doesn't take too much thinking to understand that a lot of the rendering in a smartphone device suits reduced precision. It's a completely different problem space to desktop GPUs, which are very wasteful in terms of power for a lot of what a smartphone would be asked to do. Being able to throw tens or hundreds of watts at the problem affords you design decisions like FP32 everywhere, but I assure you that is not the case when pJ/pixel is the metric you care about.
Maxwell's design choices fundamentally will not play into the hands of absolute lowest power in certainly incredibly common workloads, no matter how power efficient the core is. You can choose to believe the "FP32 is all that's needed" trope, but the very basics of rendering and how arithmetic logic works all argue otherwise.
Maxwell's design choices fundamentally will not play into the hands of absolute lowest power in certainly incredibly common workloads, no matter how power efficient the core is. You can choose to believe the "FP32 is all that's needed" trope, but the very basics of rendering and how arithmetic logic works all argue otherwise.