I was told Q4 2017 for non-graphics consumer (what kind of consumer are you referring to), but that is earlier than most others are saying. https://news.ycombinator.com/item?id=14310633
The GTX 1070 for laptops is destined to be the most interesting price/performance opportunity for a while imho, you can even undervolt the CPU -0.100 to -0.150 to reduce overheating.