Intel 3000

This generational and chronological list of Intel processors attempts to present all of Intel's processors from the pioneering 4-bit 4004 (1971) to the present high-end offerings, which include the 64-bit Itanium 2 (2002), Intel Core i7, and Xeon E3 and E5 series processors (2015). Concise technical data is given for each product.

First microprocessor (single-chip IC processor)

MCS-4 Family:

Intel 4040:

They are ICs with CPU, RAM, ROM (or PROM or EPROM), I/O Ports, Timers & Interrupts

MCS-48 family:

MCS-51 Family:

MCS-151 Family:

MCS-251 Family:

Introduced in the third quarter of 1974, these components used bipolar Schottky transistors. Each component implemented two bits of a processor function; packages could be interconnected to build a processor with any desired word length. Members of the family:

Bus width 2*n bits data/address (depending on number n of slices used)

Runs at twice the speed of the external bus (FSB). Fits in Socket 3

Pentium II Xeon (chronological entry)

XScale (chronological entry - non-x86 architecture)

Pentium 4 (not 4EE, 4E, 4F), Itanium, P4-based Xeon, Itanium 2 (chronological entries)

Itanium (chronological entry - new non-x86 architecture)

Itanium 2 (chronological entry - new non-x86 architecture)

TODO: Westmere

Intel discontinued the use of part numbers such as 80486 in the marketing of mainstream x86-architecture microprocessors with the introduction of the Pentium brand in 1993. However, numerical codes, in the 805xx range, continued to be assigned to these processors for internal and part numbering uses. The following is a list of such product codes in numerical order:

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