If you read a bit down on the same page, he says 3.9 is not stable.
I am let down by AMD shady marketing lately. That overclocked chip was incredibly cherry picked. Similarly, it looks like leaked overclock score around the net were leaked on purpose, of again, very cherry picked numbers. AMD has done so many dirty leaks.
Atleast Dr Who said his chip was cherry picked.
The general consensus so far, is on air, the phenom II hits 3.7ghz. Certainly not bad, but considering it performs clock for clock a little worse than c2q and c2q are known to hit higher clocks than 3.7, its honestly, just enough to be competitive. If one wants the best performance, even for the dollar(socket 775), without taking into account name of brand, intel is still the way to go.
Phenom II is simply what Phenom should have been. Phenom was hyped to have better performance than the c2 architecture, and it didn't. In this case it matches the c2q architecture(actually a bit slower against the newest revisions). But it is atleast not embarrassing because it can chauk up a couple of very small wins against some of intels products.
To those that say its a affordable alternative to CI7, core I7 performs 22% better clock for clock and overclocks(which is important to the people here) 10-15%. That equates to a 30%+ percent performance delta which means they are not even in the same performance class anymore.
Correction the core i7 has a 22% performance advantage even with a ten percent frequency disadvantage.
http://www.tomshardware.com/reviews/...0,2114-10.html
So the actual performance clock for clock is 25%, so we are getting close to a 40 percent performance delta when taking into account max overclocks of both.