- Socket 7
fsb=66–83 MHz System Clock
processors=75–233 MHz Intel Pentium, AMD K5 through K6, Cyrix 6x86 (and 6x86MX) P120–P233
Socket 7 is a physical and electrical specification for an
x86-style CPU socket on a personal computer motherboard. The socket supersedes the earlier Socket 5, and accepts Pentium microprocessors manufactured by Intel, as well as compatibles made by Cyrix/ IBM, AMD, IDT and others.
Socket 7 was the only socket that supported a wide range of CPUs from different manufacturers and a wide range of speeds.
Differences between Socket 5 and Socket 7 are that Socket 7 has an extra pin and is designed to provide dual split rail voltage, as opposed to Socket 5's single voltage. (However, not all motherboard manufacturers supported the dual voltage on their boards initially.) Socket 7 is backwards compatible; a Socket 5 CPU can be placed in a Socket 7 motherboard.
Processors that used Socket 7 are the
AMD K5and K6, the Cyrix 6x86and 6x86MX, the IDT WinChip, the Intel Pentium(2.5 V to 3.5 V, 75 to 200 MHz), the Pentium MMX (166 to 233 MHz), and the Rise Technology mP6.
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