CPU Families Overview

2026-05-22T23:33:34Z

Mrothfuss: /* Family 0Fh / K8 */

This page gives an overview of AMD CPU families relevant to [[coreboot-15h]].

== List of Families ==
=== Family 10h / K10 ===
  ''Main articles: [[Fam10h|Family 10h]] | [[K10]]''
* Introduced: 2007/09/10 (Barcelona Opteron)
* CPU microcode: not encrypted<ref name="ReverseEngineering-x86" />, not signed, analyzed<ref name="ReverseEngineering-x86" />
* AGESA: open-sourced<ref>https://review.coreboot.org/c/coreboot/+/95</ref>
* PSP: none present
* closed-source blobs: none required

=== Family 12h ===
  ''Main article: [[Family 12h]]''
{{Excerpt|Family 12h#Overview|inline=yes|bold=yes|only=tables}}

=== Family 14h ===
  ''Main article: [[Family 14h]]''
{{Excerpt|Family 14h#Overview|inline=yes|bold=yes|only=tables}}

=== Family 15h ===
  ''Main article: [[Fam15h|Family 15h]]''
{{Excerpt|Family 15h#Overview|inline=yes|bold=yes|only=tables}}

=== Family 16h ===
  ''Main article: [[Fam16h|Family 16h]]''
{{Excerpt|Family 16h#Overview|inline=yes|bold=yes|only=tables}}

== External Links ==
[https://en.wikipedia.org/wiki/List_of_AMD_CPU_microarchitectures Wikipedia: List of AMD CPU microarchitectures]

== References ==
(2014 paper) Security Analysis of x86 Processor Microcode
<ref name="Security-x86">
https://www.dcddcc.com/docs/2014_paper_microcode.pdf</ref>

(2017 paper) Reverse Engineering x86 Processor Microcode
<ref name="ReverseEngineering-x86">
https://www.usenix.org/system/files/conference/usenixsecurity17/sec17-koppe.pdf</ref>

Family 14h

2026-05-22T23:31:03Z

Mrothfuss: /* Overview */

{{Infobox cpu family
|image = BobcatDie.jpg
|image_size = 300
|caption = The die of a [[Bobcat]] APU
|introduced = 2011
|processnode = 40 nm
|uarch1 = [[Bobcat]]
|successor = [[Family 16h]]
}}

'''Family 14h''' (also known as '''fam14h''', or ambiguously as '''fam14''') is a [[CPU Families Overview|family of AMD microprocessors]] corresponding to the [[Bobcat]] microarchitecture. All Family 16h processors were APUs, combining a CPU and a "fast-by-integrated-standards" GPU on a single die.

"14h" (14-hexadecimal) is most correctly pronounced as "one-sixteen four", but most people say "fourteen‑aitch".

Like other AMD family names, 14h ("14 hexadecimal") is a mostly-arbitrary, somewhat-sequential (new processor families receive unused higher family numbers) number, returned by the x86 <code>CPUID</code> instruction as a "Family number", and commonly written in hexadecimal. 14 in hexadecimal corresponds to the number 20 in decimal, meaning that while "Family 20" would also be a valid, if confusing, name for these CPUs, "Family 14" could also refer to the apparently-nonexistent Family 0Eh.

== Overview ==
{| class="wikitable" style="text-align:center;"
|+
!
!Bobcat
|-
|Models
|00h-0Fh
|-
|Release Date
|2011
|-
|[[AGESA]]
|[https://github.com/coreboot/coreboot/commit/2b4c831b4d16b55a7abdea20bce82cccd168232c Open Source]
|-
|BKDG
|[https://15h.org/images/3/3d/43170_14h_Mod_00h-0Fh_BKDG_-_BIOS_and_Kernel_Developer%E2%80%99s_Guide_%28BKDG%29_for_AMD_Family_14h_Models_00h-0Fh_Processors.pdf 43170]
|-
|coreboot
| style="background-color:#AFA" | [[Family_14h#coreboot_Compatible_Motherboards|Yes]]
|-
|Microcode ROM
|Undocumented
|-
|Microcode Patches
|Unencrypted
|-
|[[PSP]]
|No
|}
''For other CPU families besides Family 14h, see [[CPU Families Overview]]''

== coreboot Compatible Motherboards ==
=== Bobcat ===
* Socket [[FT1]]
** [[PC Engines APU1]]

== More Information ==
* Codename: Ontario (introduced 2011), socket FT1
* CPU microcode: encrypted?, (not? signed?), not analyzed?
* AGESA: open-sourced<ref>https://github.com/coreboot/coreboot/commit/2b4c831b4d16b55a7abdea20bce82cccd168232c</ref>
* PSP: none present
* closed-source blobs: ?

''For other CPU families besides Family 16h, see [[CPU Families Overview]]''

== See Also ==

* [[CPU Families Overview]]
* [[AMD Codenames]]

== References ==