AMD seeks to shift that tide with the introduction of the energy efficient AMD Phenom II X4 910e processor for socket AM3. This 2.6GHz quad core chip has as all the Phenom II features that you expect: 2.6GHz quad-core design based on the "Deneb" microarchitecture, 6MB of shared L3 cache and 512KB of L2 cache per core, and a 4GHz HyperTransport 3.0 processor-to-system bus.