Anandtech published AMD 7th Gen Bristol Ridge and AM4 Analysis: Up to A12-9800, B350/A320 Chipset, OEMs first, PIBs Later A quote from the article:

Over the last two weeks, AMD officially launched their 7th Generation Bristol Ridge processors as well as the new AM4 socket and related chipsets. The launch was somewhat muted, as the target for the initial launch is purely to the big system OEMs and system integrators, such as Lenovo, HP, Dell and others ? for users wanting to build their own systems, ?Product-in-Box? units (called PIBs) for self-build systems will come at the end of the year. We held off on the announcement because the launch and briefings left a number of questions unanswered as to the potential matrix of configurations, specifications of the hardware and how it all connects together. We got a number of answers, so let's delve in.

 AMD 7th Gen Bristol Ridge and AM4 Analysis: Up to A12-9800, B350/A320 Chipset, OEMs first, PIBs Later @ Anandtech