The chipset series was revealed in its presentation slides during the AMD Financial Analyst Day 2007 held on December 13, 2007.
[1] The chipsets were supposed to support the codenamed "Montreal" processor made on 45 nm process, in Socket G3 package, supporting both unbuffered or buffered DDR3 (with Socket G3MX), HyperTransport 3.0 and IOMMU, all of them forming the codenamed "Piranha" server platform.
However, as a result of shifted strategy, AMD abandoned plans for Socket G3 and G3MX completely and focused to deliver new server platforms.
The codenamed "Fiorano" platform consists of codenamed "Istanbul" six-core processors, while "Istanbul" processors still feature Socket F+ and support dual-channel registered DDR2 memory, the platform supports HyperTransport 3.0 and IOMMU.
[2] The codenamed "Maranello" platform consists of six-core "Sao Paulo" or twelve-core "Magny-Cours" processors.