to me the first power house was using a Asus 865 based board with the CT-479 adpater to run a Dothan. stock speed was something like 1.6ghz, got it running to 2.4ghz on stock voltage. might have been able to go higher but temps for using non-modding hs mounting is where i was sticking. needless to say, with the higher fsb and 2.4ghz clock speed. it made for one good gaming rig back in the day, of course i played savage when i could as much as i could. game had a flaw in it that balista spin was fps based and when you unlocked your fps it could spin really fast. so they said i was cheating back in the day because of a FPS glitch to the balista. Of course the AMD fan boys in the game were calling me a lair about the Dothan being the better gaming cpu, which it was.
there is always some cpu thats in the wild that is the Golden overclockable cpu, be it from amd (ie athlon or FX) or Intel (ie P4,core 2, first gen i's).
my dream is being able to get a stock intel I series at 4ghz be it with HT or not. hell i run my 920 without HT to keep temps down. plus i really dont need HT, i dont encode/transcode videos, mostly just T:A these days when im in the mood or a bit of BL/BL2.