Very goooood article answered all question i had about TC....

These are the important quotes:

"Thuban does not include the ability to gate off power entirely to an idle core like Intel's Nehalem-derived CPUs"

and

"500MHz from going into a boost state, which means effective clock speeds with lightly multithreaded applications could approach or exceed 4GHz."

Why the the other one imp well because when a PhII is OCed around 4Ghz the performance in most games equal that of a i7 @ 4Ghz so in effect a 3.2Ghz 1095T which has a 500mhz boost will kick some serious arse in games performance in which not more than 3 cores are used.

This is a very calculated move by AMD because its not that intensive as Turbo nor as unpredictable and it basically gives you 3 cores @ stock+500mhz or gives you 6 cores @ stock. AMD most likely will use a similar approach with the BD also but add in other things like power gate's, etc.