Socket AM2+

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Specifications
Socket AM2+

Type	PGA-ZIF
Chip form factors	Ceramic Pin Grid Array (CPGA) Organic Pin Grid Array (OPGA)
Contacts	940
Bus Protocol
FSB	200 MHz System clock 2 GHz HyperTransport
Voltage range	?
Processors	Athlon 64 X2 Athlon 64 X4 Athlon 64 FX
This article is part of the CPU socket series

The Socket AM2+ is the immediate successor to Socket AM2 currently used in several AMD processors such as Athlon 64 X2, Socket AM2+ will be a mid migration from Socket AM2 to Socket AM3 and will be fully compatible with Socket AM2, so processors designed for Socket AM2 will work on Socket AM2+ motherboards and vice versa.

Socket AM2+ will have some differences however that will be used in AM2+ chips, there are two main features in Socket AM2+ not in Socket AM2:

HyperTransport 3.0 operating at up to 2 GHz
Advanced power features summarized as having split power planes, probably one for CPU Cores, and the other for the Integrated Memory controller (IMC), this will help for more advanced power management control.

AMD confirmed that AM2 processors will work in AM2+ motherboards and AM2+ processors will work on AM2 motherboards. However, due to the lack of support of HyperTransport 3.0 and separated power planes in Socket AM2 motherboards, AM2+ chips will be limited to the specifications of Socket AM2 (HyperTransport 2.0 at the speed of 1 GHz, one power plane for both Cores and IMC). AM2 chips will not benefit from faster HyperTransport and separated power planes on AM2+ motherboards as they do not support them, AM2+ motherboard then fall back to compatibility mode using AM2 specifications.

According to confirmations from AMD, Socket AM2+ will have a compatibility path with Socket AM3, AM3 processors will work in AM2+ motherboards; however, AM2+ processors will not be compatible with AM3 motherboards.

[edit] See also

v • d • e AMD • List of AMD CPU Slots and Sockets
Desktop sockets: Super Socket 7 • Slot A • Socket A • Socket 754 • Socket 939 • Socket 940 Socket AM2 • Socket F • Socket AM2+ • Socket AM3 Mobile sockets: Socket 563 • Socket S1 Server sockets: Socket A • Socket 940 • Socket F