AMD schedules to launch its 45nm process socket AM3 family processors in the second half of 2008. The processors will support HyperTransport 3.0 and will have a built-in DDR2/DDR3 memory controller. The processors will be backward compatible with the previous AM2 and AM2+ socket motherboards, according to sources at motherboard makers. AMD's AM3 family will include the quad-core Deneb and DenebFX, dual-core Propus and Regor, and single-core Sargas. Shipments of 45nm products are predicted to surpass those of 65nm products within half a year from launch, noted the sources.
Although Socket AM3 processors will be backwards compatible with previous socket AM2 and AM2+ motherboards, socket AM3 motherboards will not be able to support the previous socket AM2 and AM2+ processors. Therefore shipment volumes of socket AM3 motherboards will depend on the speed of transition to DDR3 memory, added the sources