http://www.tomshardware.com/reviews/fx-8350-vishera-review,3328.html In short Piledriver is better than Bulldozer in every way possible. This is combination of tweaking of the core and uncore to increase the amount of instructions per second, and this new technology called integrated clock mesh, which sort of recycles wasted power on each clock, reducing the TDP and allowing you to clock the CPU much higher. The IPC is still worse than the old Phenom II's, but Piledriver can clock so much higher it manages to compensate for that... In general it seems to be inline with an ivy bridge i5 (slightly better for threaded programs, such as media encoders, slightly worse for games, which are generally not well threaded). You have to remeber, this CPu is not intended to compete with the i7-3770K. It's priced to compete with the i5's, and it does that quite well.... on the downside, it does use a lot more power though.