TSMC will start producing 16nm wafers in the first quarter of 2015. Sometime in the second quarter production should ramp up to 50,000 wafers a month.
The new FinFET process will be utilised for ARM SoCs. We still don’t have much information on 16nm GPUs. It is rumoured that Apple is one of TSMC’s major 16nm clients, possibly even the biggest client. However, there is also a possibility that Samsung will take over part of Apple’s business in late 2016, using the company’s 14nm node.
Other major clients for TSMC’s 16nm FinFET+ process include MediaTek and Qualcomm, along with smaller chip designers. At this point it appears that TSMC will transition to 10nm sometime in 2016, but there is no exact timeframe yet.
More here, bring a translator.