Thanks for the additional SMT-off test, Hilbert. :thumbup: At least we know that SMT has a negative impact in some situations, like some games. This is what I think as a coder about it: I wonder if two threads are ending up on the same core, when there are still free cores left. That would explain the negative impact. It's probably an issue that can be avoided once programmers get familiar with Ryzen. Beterschap!