The Tech Report published a review on the AMD unwraps its seventh-generation desktop APUs and AM4 platform A quote from the article:

AMD's seventh-generation APUs, code-named Bristol Ridge, have been available for a couple months in mobile systems already. The company is now bringing Bristol to the desktop, along with the Socket AM4 platform that will eventually underpin Zen CPUs. We take an early look at Bristol on the desktop and what it might mean for the Zen CPUs to come.

 AMD unwraps its seventh-generation desktop APUs and AM4 platform @ The Tech Report