please note that AMD has stopped producing the true Phenom II CPU's except for the 960T and the x6 cores which are really a Thuban or a Zosma which is derived from Thuban and not a phenom at all... so there is only 1 current cpu to answer your question with and its a phenom II x4 980. All thats left aren't really phenoms at all... LoL
The 960T runs just a tad slower that the 955 if i remember right making the 1100t the king of the current 'phenom' cpu's though you can still find the 980 in the market.
i looked on newegg it's a bit more expensive then the athlon cpu's, it's $160 and seems great but the reson im asking is beacause i posted before asking about building a computer for a friend and and athlons don't have any x6's but are cheaper and im guessing deneb is better than thuban or zosma so are these better? i might go for a cheaper athlon and which is better thuban or zosma? im guessing zosma but anyway can the 3.7GHz deneb x4 980 black edition be unlocked to a x6 cpu?