But the consensus is that if you're still running a Phenom 2 x6, and you don't need 8-threads and mostly play video games, it really is throwing money into the fire in order to upgrade to the FX line, Piledriver or not, unless you intend to overclock the chips to 4.8ghz+ which the Phenom 2's can't reach on air
Prognosis for the near future is that having that many threads will still not be a whole lot of use for gaming. See Amdahl's law for why.
Steamroller is far more focused on increasing IPC, however without a new process node it'll be difficult to demonstrate another gian in frequency like we see today with Vishera. I suspect the real chance for AMD to approach parity in many of these workloads will be with its 20nm architecture, perhaps based on Excavator in 2014.
The "process advantage" didn't do shit for Intel. Note how Ivy Bridge had horrible overclocking compared to anticipated...