That's an incredibly small number of benchmarks, cherry picked to be the few examples where AMD is at their strongest.
Whilst they (whoever the source may be) is trying to paint a pretty picture, what I can't help noticing is the lack of significant improvement in IPC. The Piledriver is marginally better than the bulldozer, but not out of line with what I'd expect if the Bulldozer was clocked up to 4.2GHz.
This is my signature. There are many like it, but this one is mine. However, my signature is neither my best friend, nor is it my life. I also have no desire to master it and my worth is not signature-dependent.