Timeline of Major Microarchitectures

A microarchitecture is, to put it shortly, an implementation of an architecture. Modern x86 processors are usually designed in this fashion:

In general, knowing the microarchitecture used inside a particular chip tells you a great deal about its guts, which makes this valuable knowledge. So for your convenience, we have compiled all of the post-486 microarchitectures employed by AMD, Intel, and VIA's various x86 products.

A timeline showing the relationships between different microarchitectures

(Click for big version)

These dates are representative of the earliest "introduction" dates of the various products (most of which come from Chris Hare). Below each microarchitecture is a short list of some of the major products that are based on that microarchitecture; server, value, and unusual (Core 2 Extreme and such) products have generally been excluded for simplicity.

Lines between microarchitectures represent the inheritance of major features, and also the time period in which products of a certain family were available. The dotted line from one Intel "P6" to another is meant to represent that while the second group of P6 products (Pentium M and Core) is based heavily on the other, there was a period of time in which there were no P6 products on the market.

Two groups of as-yet-unreleased products (scheduled for released later in 2008) are shown: VIA's Isaiah and Intel's Nehalem. These will be updated with more information when they are released.

A huge version (10,000 x 4,807 px, 783 KB) of this image is also available. Other sizes available on request.

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