Ok let's say I did NOT just get access to a Win7-x64 box with NO GTX1080 and CUDA 8.0RC NOT installed and I didn't succesfully build my 1.0.8 ethminer fork on it.
I didn't clock 19.6MH in default benchmark mode at ~140W and it sure as hell didn't clock a whopping
650KH/s in actual mining mode against the current DAG.
This card trashes TLB like GM107

But...there is hope. I can't disclose what I just heard from my source because the word 'might' in his statement leaves me too uncertain. But if it's true everything simply changes.