During last weeks presentation, there was a bit of confusion about the actual IPS performance increase for the 7nm Zen 2 architecture. Was the generational improvement including clock frequency the result of a ~25% perf increase or was that IPC. Well, as it turns out right now it's actually 29% IPC.

The next-generation processor architecture would offer a 29 percent IPC increase when compared to the original "Zen" architecture. It's quite a lot and I'd take it with a grain of salt. Then again, the architecture is substantially different and if you look back at AMD prior to Ryzen, they achieved a 52% IPC increase there as well. So it is not unheard of. 

The news coming from Expreview mentions that AMD performed DKERN + RSA tests for integer and floating point units and that resulted into a score of 4.53, that was 3.5 for the first-generation Zen and that indeed is a 29.4 percent IPC. Of course, these are number from the manufacturer themselves and have to be observed with caution as other benchmarks have not been mentioned. So I have to add though, 29% "in certain workloads". Still, impressive.

AMD 'Zen 2' IPC has 29 percent higher IPC