I have a suspicion these are server samples based off the low power states they support. 5W idle is actually really impressive, but desktop users won't care one way or another.

It just seems like they would have opened up the power envelope for enthusiast parts. The FX-9590 has a *default* boost clock of 5GHz. Even with a 40% increase in IPC, quadcore Zen would need quite a bit more than just 3.2 GHz to surpass that level of performance, let alone catch up to Intel.