The AMD Quad FX platform is an AMD platform targeted at enthusiasts which allows users to plug two Socket F Athlon 64 FX or 2-way Opteron processors (CPUs) into a single motherboard for a total of four physical cores.[1] This is a type of dual processor setup, where two CPUs are installed on a motherboard to increase computing power. The major difference between the platform and past dual processor systems like Xeon (pre Intel 5000X/P chipset) is that each processor has its own dedicated memory stores. The Quad FX platform also has HyperTransport capability targeted toward consumer platforms.[2][3]
In May 2007, AMD officially codenamed the eight core setup with two Phenom FX processors to be the FASN8 (pronounced as "fascinate", /ˈfæsɪneɪt/, in short for First AMD Silicon Next-gen 8-core Platform)[4] from the previous codename "4x4+" used in Analyst Day presentations.