Indeed. Benchmarks I did (unpublished publicly) shows both Bulldozer and Piledriver get much more love under Tux' wing. And as *better not tell who* commented, that this is also related to microcode issues that are taken care of while on Linux, along with the "usual" Win7 scheduling issues. Also, there's one more possible BD&PD-related issue on Windoze I'd better not speak about. P.S. On Win7, CPU scheduling is simply horrible when it comes to switching between active tasks.