The point is that bulldozer will shine when Windows 7 is updated(read fixed).
If you disable two modules and run an 8150 as a 4 core 2 module chip, you get better performance in games.
The OS is not able to assign the core affinity properly, because only 4 cores 8 threads are recognized. The 2nd core of each module is not used by Windows to execute tasks.
BD has been designed as a future proof chip. Its like although the 8800GTS 512 was faster than 8800GTX, when a game used more than 512MB VRAM, the 8800GTX handled it better.
BD will butt-rape any Intel chip so far (non-xeon 8/10 core; and SB-E/EP because we have no solid numbers yet) if you run a software capable of using the 8 cores.