T-bred A and B difference

[Chrisdragon]

What's the difference between the two?

 

[Corporate Thug]

the b core overclocks better

 

[Actaeon]

Technically, AMD put another layer on the core, and that somehow made it a much better scaling CPU.

There is no differences other than that. You really should opt for the B Core though, they run much cooler, and overclock much better.