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Socket 7 is a physical and electrical specification for an x86-style 
CPU
A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, and ...
socket on a personal computer motherboard
A motherboard (also called mainboard, main circuit board, mb, mboard, backplane board, base board, system board, logic board (only in Apple computers) or mobo) is the main printed circuit board (PCB) in general-purpose computers and other expand ...
. It was released in June 1995. The socket supersedes the earlier Socket 5, and accepts P5 Pentium
Pentium is a brand used for a series of x86 architecture-compatible microprocessors produced by Intel. The original Pentium processor from which the brand took its name was first released on March 22, 1993. After that, the Pentium II and P ...
microprocessor
A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit, or a small number of integrated circuits. The microprocessor contains the arithmetic, logic, and control circu ...
s manufactured by Intel
Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the devel ...
, 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
Backward or Backwards is a relative direction.
Backwards or Sdrawkcab (the word "backwards" with its letters reversed) may also refer to:
* "Backwards" (''Red Dwarf''), episode of sci-fi TV sitcom ''Red Dwarf''
** ''Backwards'' (novel), a nov ...
; a Socket 5 CPU can be inserted and used on a Socket 7 motherboard.
Processors that used Socket 7 are the AMD K5 and K6, the Cyrix 6x86 and 6x86MX, the IDT WinChip, the Intel P5 Pentium
Pentium is a brand used for a series of x86 architecture-compatible microprocessors produced by Intel. The original Pentium processor from which the brand took its name was first released on March 22, 1993. After that, the Pentium II and P ...
(2.5–3.5 V, 75–200 MHz), the Pentium MMX (166–233 MHz), and the Rise Technology
Rise Technology was a short lived microprocessor manufacturer that produced the Intel x86 MMX compatible mP6 processor. The mP6 was a microprocessor that was designed to perform a smaller number of types of computer instructions so that it can ...
mP6
The Rise mP6 was a superpipelined and superscalar microprocessor designed by Rise Technology to compete with the Intel Pentium line.
History
Rise Technology had spent 5 years developing a x86 compatible microprocessor, and finally introduc ...
.
Socket 7 typically uses a 321-pin (arranged as 19 by 19 pins) SPGA ZIF
ZIF, ZiF or Zif may refer to:
* Zero insertion force, a way to connect an electrical connector without applying force to the connector
* Zero Intermediate Frequency, a radio demodulation technique
* Zeolitic imidazolate frameworks, a class of me ...
socket or the very rare 296-pin (arranged as 37 by 37 pins) SPGA LIF socket. The size is 1.95" x 1.95" (4.95 cm x 4.95 cm).
An extension of Socket 7, Super Socket 7
Super Socket 7, also referred to as Super 7, is a hardware-level extension of the Socket 7 ZIF socket specification for x86 processors. Compatible motherboards and chipsets use a standard Socket 7 connection for the CPU, while adding certain feat ...
, was developed by AMD for their K6-2 and K6-III processors to operate at a higher clock rate and use AGP
AGP may refer to:
Science and technology
* Accelerated Graphics Port, a high-speed point-to-point channel for attaching a graphics card to a computer's motherboard
* Advance Game Port, a third-party GameCube accessory
* Aerosol-generating proce ...
.
Socket 7 and Socket 8 were replaced by Slot 1 and Slot 2 in 1999.See also
* List of Intel microprocessors * List of AMD microprocessorsReferences
{{intelsock Socket 007