Yeah logically that makes sense. They indeed beat the disadvantage a bigger pipeline brings. Assuming it had 10 stages, the IPC would have been 20% higher than the current one too!
I just can't wait to see 1.6GHZ+ samples, with 512K L2 cache. Indeed if that website was right, then Clawhammer might just be AMD's new flagship, and that it won't have put all its eggs in the basket carrying a huge risk, as Slvr once stated. (though not exactly like that)
Let us hope the CH carries such an improvement in the end, and its price will be justifyiable. BTW according to the website's results, it had a big ~50% improvement over the MP 800MHZ (Palomino core?), and also without the 512K cache. It might just mean that the CH could up the average IPC increase up to 40% from there! Let us hope though, it would be well enough to compete the latest Intel by then, and I think that would bring a very nice competition to the market, and indeed a product that would ressemble the upgrading from 286 to 386 times as some said. I can only imagine MPeg 4 encoding, and Lightwave 7B benchs, WITH SSE 2 too!