Athlon 64 X2 Dc 6400+ AM2 3.2G 2MB 90NM 125W 2000MHZ Pib The 3.2 GHz dual-core processor features an integrated 128-bit dual-channel memory controller DDR2 memory up to and including PC2 6400 (DDR2-800) unbuffered memory, and a dedicated 2MB L2 cache.