Socket AM2
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|
| Type | PGA-ZIF |
|---|---|
| Chip form factors | Ceramic Pin Grid Array (CPGA) Organic Pin Grid Array (OPGA) |
| Contacts | 940 |
| FSB frequency | 200 MHz System clock 1 GHz HyperTransport 2.0 |
| Processors |
Athlon 64 Athlon 64 X2 Athlon 64 FX Opteron Sempron Phenom |
| Predecessor | Socket 939 |
| Successor | AM2+ |
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This article is part of the CPU socket series |
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The Socket AM2, renamed from Socket M2 (to prevent using the same name as Cyrix MII processors), is a CPU socket designed by AMD for desktop processors, including the performance, mainstream and value segments. It was released on May 23, 2006, as a replacement for Socket 939.
AM2 processors are incompatible with 939 motherboards and vice versa, and although it has 940 pins, it is incompatible with Socket 940. Socket AM2 supports DDR2 SDRAM memory but not DDR memory, which the previous Socket 939 supported. AnandTech reported that Socket AM2 system performance was only about 7% faster than Socket 939 equivalents, with most applications about 2% faster, despite having over 30% greater memory bandwidth due to DDR2 support.
The first processor cores to support socket AM2 were the single-core Orleans (Athlon 64) and Manila (Sempron), and the dual-core Windsor (Athlon 64 X2 and Athlon 64 FX). Most processors on Socket AM2 include SSE3 instructions and were developed with 90 nanometer technology, while later models featured 65 nanometer technology.
Socket AM2 also supports newer AMD Phenom processors, which were originally built for Socket AM2+ but backward compatible with AM2, however, this depended upon the system/motherboard manufacturer to supply a BIOS firmware update to operate the processor.
Socket AM2 was a part of AMD's generation of CPU sockets that included Socket F for servers and Socket S1 for mobile computing.
There are also single-socket Opteron processors available for AM2.
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