The B2 revision of K10, Barcelona / Phenom will be AMD's lifesaver. It is scheduled for Q4 and it will finally allow AMD to go over 2.5 and all the way to 3GHz speeds if not even faster. The B1 ...
TL;DR: AMD has come out publicly to confirm the recently spotted B2-stepping Ryzen processors indeed exist, but they won't bring any significant performance improvements over their predecessors.
This week there has been talk about a revision of the AMD Ryzen 5000 desktop processors (Vermeer) on the way to deliver faster turbo clocks. It wasn't very clear, but some expected a B2 revision, ...