I'm not an AMD guy, but I certainly see from around here FX 83xx topping out around 5Ghz on water (with the right board and custom water half the time). Anything over 5Ghz on ambient cooling I would like to see the results of a stress test and not just some screenshot. I am sure there are several there, not saying its a magic unicorn, perhaps just a giant squid rarely seen alive. So I disagree that a lot of these are over 5 Ghz. Certainly not the norm. 4.6-4.8Ghz or so is what I have seen. A bit more than Intel's average I would concede. But its also not about clocks and you are dismissing where the Intel's are starting from (when comparing apples to apples).
Point remains though. 1Ghz overclocks out of intel aren't anything to shake a stick at. That's over 33% overclock (3.5Ghz to 4.5Ghz+). Whereas it takes an 8370 to reach 5.32GHz to have a 33% overclock...which is more rare than a 4.6Ghz Intel.
4790K and Skylake are different stories (more along the lines of what you are thinking) considering they are starting out a 4Ghz as well. But they are 4.7Ghz chips. AMD is also on a mature process (28nm) and it is generally a bit easier to push clocks that way (not always!).
Point remains though. 1Ghz overclocks out of intel aren't anything to shake a stick at. That's over 33% overclock (3.5Ghz to 4.5Ghz+). Whereas it takes an 8370 to reach 5.32GHz to have a 33% overclock...which is more rare than a 4.6Ghz Intel.
4790K and Skylake are different stories (more along the lines of what you are thinking) considering they are starting out a 4Ghz as well. But they are 4.7Ghz chips. AMD is also on a mature process (28nm) and it is generally a bit easier to push clocks that way (not always!).