Why are the AMD64 processors moving to socket 939?
AMD believes in bringing customer-centric technology to market that benefits partners and end users. By offering the AMD Athlon 64 processors in a 939-pin package, AMD is enabling performance enhancements and next-generation platform innovations with the use of a cost-effective four-layer circuit board and higher-performing unbuffered DDR memory (Compared to registered DDR memory in the 940-pin part).