Intel 80386 & 80387

80286 ◄ 80386 ► 80486


Intel 80386 © Intel
Intel 80386 © Intel

The Intel 80386 is a 32-bit microprocessor introduced by Intel in 1985. The first versions had 275k transistors and were used as the CPU of many workstations and high-end PC of the time.

Mainboards for 80386-based computer systems were cumbersome and expensive at first, but manufacturing was rationalized upon the 80386's mainstream adoption. The first personal computer to make use of the 80386 was designed and manufactured by Compaq and marked the first time a fundamental component in the IBM PC compatible de facto-standard was updated by a company other than IBM.

 

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Intel i386 DX

Intel 80386 16 MHz

A80386-16
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Intel 80386 20 MHz

A80386-20
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Intel 80386 DX-20 IV

A80386DX-20 IV
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Intel 80386 DX-25

Intel 80386 DX Die Picture by Pauli Rautakorpi - Published under the Creative Commons Attribution 3.0 Unported license. Slightly edited by HARDWARECOP.

A80386DX-25
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Intel 80386 DX-25 IV

A80386DX-25 IV
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Intel 80386 DX-33 IV

CPU die

picture:

Intel i386DX33-IV (the exact!! CPU) Die Picture by Pauli Rautakorpi - Published under the Creative Commons Attribution 3.0 Unported license. Slightly edited by HARDWARECOP.

A80386DX-33 IV
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Unlisted models:

  • i386 DX: 12 MHz
  • RapidCad-1
  • i376: 16 MHz, 20 MHz 

 

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