Seems like they're pulling a GeForce FX in some ways though, using FP16 in shaders in benchmarks. The GFXBench PSNRs seem to suggest 50% worse than Maxwell.

NVidia was raked over the coals in the GeForce FX era for running FP16 shaders because FP32 ran far slower (ATI was using FP24 which was a nice sweet-spot at the time)

I'd like to see more image quality comparisons for mobile GPUs like the Desktop Era, because there may be cheating involved in IQ department.

Also, in comparisons with the K1, keep in mind NVidia claims K1 is DirectX12 class, so some of the die space is being used for functionality not benched in GFXBench.