Socket 754 Vs. 939

CPU sockets are part of the internal workings of desktop and server computers. They are designed to house a microprocessor and are attached to a circuit board. Some are built to work with specific processors. Others are compatible with many processors.

Purpose

• The 754 socket was created for workstation-class desktop and mobile microprocessors, while the 939 was intended for use in desktop K8 microprocessors. The 754 was replaced by the 939 in all desktop microprocessors and the S1 socket replaced it in mobile microprocessors. The AM2 socket eventually replaced the 939.

Features

• Socket 754 could handle desktop processor frequencies up to 2.4GHz (or 3700+) as well as mobile processor frequencies up to 2.6GHz (or 4000+). The frequency range of the 939 was slightly higher, capable of working with processor frequencies from 1.8GHz to 3.0GHz (or 3000+ to 4000+). 754 supported a single-channel DDR SDRAM memory controller and one 800MHz Hypertransport Link. The 939 supported a dual-channel DDR SDRAM memory controller and one Hypertransport Link.

Processors

• Both sockets worked with Athlon 64, Sempron, and Sempron 64 processors. The 754 also could be used with Mobile Athlon 64, Turion 64 Mobile Technology, Mobile Sempron, and K8 Athlon XP-M, while the 939 also could be used with the Athlon 64 X2, Athlon 64 FX, Opteron, and Dual-Core Opteron