Intel iAPX 432

Intel iAPX 432
	Intel Corporation logo, 1968–2006
General information
Launched	late 1981
Discontinued	ca 1985
Common manufacturer	Intel;
Performance
Max. CPU clock rate	5 MHz to 8 MHz

The iAPX 432 (Intel Advanced Performance Architecture) is a discontinued computer architecture introduced in 1981.^[1]^{[NB 1]} It was Intel's first 32-bit processor design. The main processor of the architecture, the general data processor, is implemented as a set of two separate integrated circuits, due to technical limitations at the time. Although some early 8086, 80186 and 80286-based systems and manuals also used the iAPX prefix for marketing reasons, the iAPX 432 and the 8086 processor lines are completely separate designs with completely different instruction sets.

The project started in 1975 as the 8800 (after the 8008 and the 8080) and was intended to be Intel's major design for the 1980s. Unlike the 8086, which was designed the following year as a successor to the 8080, the iAPX 432 was a radical departure from Intel's previous designs meant for a different market niche, and completely unrelated to the 8080 or x86 product lines.

The iAPX 432 project is considered a commercial failure for Intel, and was discontinued in 1986.^[1]^[3]

^ ^a ^b Dvorak, John C. "Whatever Happened to the Intel iAPX432?". Retrieved 19 July 2012.
^ Defining Intel: 25 Years / 25 Events (PDF). Intel. 1993. p. 14.
^ Smith, Eric. "Intel iAPX-432 Micromainframe". Retrieved Dec 6, 2015.

Cite error: There are <ref group=NB> tags on this page, but the references will not show without a {{reflist|group=NB}} template (see the help page).

[dvorak-1] Dvorak, John C. "Whatever Happened to the Intel iAPX432?". Retrieved 19 July 2012.

[2] Defining Intel: 25 Years / 25 Events (PDF). Intel. 1993. p. 14.

[4] Smith, Eric. "Intel iAPX-432 Micromainframe". Retrieved Dec 6, 2015.

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[NB 1]

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