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.