The Socket G3, originally as part of the codenamed Piranha server platform, was supposed to be the intermediate successor to Socket F and Socket F+ to be used in AMD Opteron processor for dual-processor (2P) and above server platforms scheduled to be launched 2009. The Socket G3 would have been accompanied by the Socket G3 Memory Extender (Socket G3MX), for connecting large amounts of memory to a single microprocessor by a G3MX chip placed on the motherboard.
However, socket G3 was officially discontinued as of March 2008. The socket that will be the successor to the Socket F is the LGA 1974-pin Socket G34.