AMD Zen Microprocessor Family

Concept

The AMD Zen microprocessor family is a series of AMD CPU microarchitectures whose published errata have been systematically collected and analyzed by the RemembERR database. AMD documents errata on a per-microarchitecture (per-family) basis, in contrast to Intel's per-generation approach, and the Zen 3 family in particular contains documented post-production bugs such as a processor hang under specific instruction cache / Op Cache switching conditions.

First seen 7/26/2026

Last seen 7/26/2026

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AMD Zen Microprocessor Family

Overview

The AMD Zen family designates AMD's x86 CPU microarchitectures introduced from 2017 onward. In the context of design testing and validation research, the AMD Zen family is significant because AMD publishes a single errata document per CPU microarchitecture (per family), providing the empirical data on which post-production bugs are observed [chunk:82fcd5a6-2a96-493a-b0f8-8b0200af5adc].

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NEIGHBORHOOD

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RELATIONSHIPS

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RemembERR: Leveraging Microprocessor Errata for Design Testing and Validation ← evaluates 95% 2e

The paper collects and analyzes errata for AMD microprocessor families since 2008.

AMD ← mentions 95% 1e

AMD produces the Zen microprocessor family for which errata are published.

LINKED ENTITIES

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RemembERR: Leveraging Microprocessor Errata for Design Testing and Validation EVALUATES Extracted graph relationship

AMD MENTIONS Extracted graph relationship

CITATIONS

4 sources

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[1] RemembERR contains 506 errata from AMD, of which 385 are unique, including entries from AMD Zen family microarchitectures. Leveraging Microprocessor Errata for Design Testing and Validation

[2] AMD publishes a single errata document per CPU family (per microarchitecture), in contrast to Intel's per-generation approach. Leveraging Microprocessor Errata for Design Testing and Validation

[3] AMD Zen 3 family erratum 1361 documents a processor hang when switching between instruction cache and Op Cache under specific timing conditions and code footprints exceeding 32 KB, with no fix planned. Leveraging Microprocessor Errata for Design Testing and Validation

[4] RemembERR's database of 2,563 errata covers Intel Core and AMD microprocessor families since 2008 and is used to identify gaps in design testing and validation. Leveraging Microprocessor Errata for Design Testing and Validation