AMD disclosed the IPC improvement to THG awhile back. They stated a third of 15% improvement PD will bring over BD will be IPC(so 5%), while two thirds will be power improvement(read more clock within same TDP). So the 10% in the slide must be clock+IPC over Bulldozer "8C" at undisclosed clock (maybe 8150 or 8170,where the later one is more logical choice as PD will come right after this part).
We still may see an additional boost of 3-7% in less multithreaded apps( thread count lower than 8) , as per Microsoft. The patch will come with 8170 or a bit sooner.