Socket 939
Socket 939 | |
---|---|
![]() |
|
Specifications | |
introduction | 2004 |
design type | PGA - ZIF |
contacts | 939 |
Bus protocol | K8 HyperTransport |
Bus cycle | 200 MHz system clock 1000 MHz (HT1000) HyperTransport |
Operating voltage | 0.8-1.55V |
Processors |
AMD Sempron AMD Athlon 64 AMD Athlon 64 FX AMD Athlon 64 X2 AMD Opteron |
The base 939 is a processor socket for processors AMD Athlon 64 , AMD Athlon 64 FX , AMD Athlon 64 X2 and AMD Opteron . It was presented in June 2004 as the successor to the Socket 754 . Its successor is the AM2 socket presented in May 2006 .
Socket 939 is a modification of Socket 940 , which in contrast to it no longer requires Registered DDR-SDRAM , but also normal DDR-SDRAM, which enables the construction of cheaper Athlon 64 systems.
The base 939 differs from the base 754 as follows:
- 128-bit memory interface ( dual channel ) instead of just one channel (64-bit)
- 1000 MHz (HT1000) - HyperTransport instead of 800 MHz (HT800)
Socket 754 was intended for entry-level PCs based on AMD processors , while Socket 940 with its two-channel memory interface was to be used for workstations and servers .
Socket 939 has been replaced by the new Socket AM2 as the standard socket for all AMD workstation / desktop processors, as it supports DDR2-800 memory and is prepared for AMD's Pacifica virtualization technology .
Due to the increasing popularity of the new AM2 sockets and later also AM2 +, the socket 939 very quickly became a rarity, as the upgrade was not very expensive. At the time, this meant that used Socket 939 components were more expensive than new AM2 / AM3 components, while systems based on the competing Socket 775 from Intel were always cheaper.
Web links
- support.amd.com (PDF) White Paper for Socket 939 (English)