Why is all I think about while looking at this is that my first generation i7 920 is more than satisfactory? Probably because it is.
I'm also getting a strong sense of deja vu back to the Pentium 4's and Intel trying to push the clocks as high as they could reasonably go.
Then I get this knot in my stomach that computers are getting slower, not faster, because consumers aren't demanding faster (e.g. explosion of tablet and smartphone sales). Then again, developers aren't really pushing for faster hardware like they did in the 1990s and early 2000s.
Maybe it's because AMD is on a crash course and Intel has nothing better to do?