Summit Ridge is based on the upcoming high-performance Zen architecture, which reportedly features up to eight cores and DDR4 support.
The report mentions Bristol Ridge, a new mainstream APU that will replace the the Godavari "Kaveri Refresh" APU in 2016, will get the same manufacturing treatment and that this applies to Raven Ridge as well.
Raven Ridge is a codename we haven't heard before, DigiTimes claims this APU is scheduled for 2017.
Taiwanese supply chain makers also mentioned that AMD placed orders with ASMedia for USB 3.1 controller ICs to match its chipsets to be launched in September 2015.