Family 10h

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Family 10h
The die of a 8400-series Opteron, implementing the K10 microarchitecture.
Overview
Introduced2007
Process NodeGlobalFoundries 45nm SOI, except 65nm SOI on Phenom and 32nm SOI on some APUs
Microarchitecture
Chronology
PredecessorFamily 0Fh (K8)
SuccessorFamily 15h

Family 10h (also known as fam10h, or ambiguously as fam10) is a family of AMD microprocessors corresponding to the K10 microarchitecture.

Like other AMD family names, 10h ("10 hexadecimal") is a mostly-arbitrary, somewhat-sequential (new processor families receive unused higher family numbers) number, returned by the x86 CPUID instruction as a "Family number", and commonly written in hexadecimal. 10 in hexadecimal corresponds to the number 16 in decimal, meaning that while "Family 16" would also be a valid, if confusing, name for these CPUs, "Family 10" could also refer to the (apparently nonexistent) fam0Ah.

Microcode

10h is the last CPUs with readable unencrypted microcode.