page_title: Socket A
section_title: Technical specifications
hierarchical_section_title: Socket A / Technical specifications
caption_attribution_description: English: View of the Socket 462 on an 800 MHz AMD Athlon CPU.
context_page_description: Socket A is the CPU socket used for AMD processors ranging from the Athlon Thunderbird to the Athlon XP/MP 3200+, and AMD budget processors including the Duron and Sempron. Socket A also supports AMD Geode NX embedded processors. The socket is a zero insertion force pin grid array type with 462 pins. The front side bus frequencies supported for the AMD Athlon XP and Sempron are 133 MHz, 166 MHz, and 200 MHz.
  Socket A supports 32-bit CPUs only.
  Socket A was replaced by Socket 754 and Socket 939 during 2003 and 2004 respectively, except for its use with Geode NX processors.
context_section_description: Support of processor clock-speeds between 600 MHz (Duron) to 2333 MHz (Athlon XP 3200+)
  Double data rate 100, 133, 166 and 200 MHz front side bus on Duron, XP and Sempron processors, based on the Alpha 21264 EV6 bus.
   
  Initially launched with 100 MHz FSB support in the earliest chipsets it evolved stepwise to faster 200 MHz FSB while maintaining pin compatibility throughout its lifetime. However, clock, timing, BIOS and voltage differences restrict compatibility between older chipsets and later processors.
  Socket dimensions are 5.59 cm (5.24 cm without lever) x 6.55 cm or 2.2" (2.06" without lever) x 2.58".
caption: Socket 462 of an 800 MHz Athlon CPU
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