Apart from the 3.70 Phenom II X4 980, AMD's next, and probably (hopefully) final wave of Phenom II processors will include a 3.50 GHz clocked dual-core part, the Phenom II X2 570 Black Edition. This socket AM3 chip will be based on the "Callisto" silicon, which is essentially a "Deneb" quad core die used in X4 parts, with two of its four cores disabled.