AMD says Ryzen CPUs are performing as expected after launch
 

In the wake of AMD's Ryzen launch, intrepid builders, hackers, and reviewers at PC hardware sites around the web have shared data that purport to explain performance deltas between Ryzen CPUs and their competition from Intel in some applications. Those explorations have raised concerns about Ryzen's simultaneous multi-threading (SMT) implementation, interactions between Ryzen's core layout and the Windows 10 scheduler, and to a lesser degree, the chip's Turbo behavior. That growing clamor has had many, myself included, waiting for some kind of official response, and now we have one.

http://techreport.com/news/31579/amd...d-after-launch