List of AMD Opteron microprocessors

Opteron is the name of a family of CPUs within the AMD64 line. Designed by AMD for the server market, it competed with Intel's Xeon. The Opteron family is succeeded by the Zen-based Epyc series.
For Socket 940 and Socket 939 Opterons, each chip has a three-digit model number, in the form "Opteron XYY. For Socket F and Socket AM2 Opterons, each chip has a four-digit model number, in the form "Opteron XZYY. For all Opterons, the first digit (the X) specifies the number of CPUs on the target machine:
For Socket F and Socket AM2 Opterons, the second digit (the Z) represents the processor generation. Presently, only 2 (dual-core), DDR2, 3 (quad-core) and 4 (six-core) are used.
For all Opterons, the last two digits in the model number (the YY) indicate the clock frequency of a CPU, a higher number indicating a higher clock frequency. This speed indication is comparable to processors of the same generation if they have the same amount of cores. Single-cores and dual-cores have different indications, despite sometimes having the same clock frequency.
Model Number Methodology for the AMD Opteron 4000 and 6000 Series Processors.<br>
AMD Opteron processors are identified by a four digit model number, ZYXX, where:<br>
Z – indicates Product Series
Y – indicates series generation
XX – communicates a change in product specifications within the series, and is not a relative measure of performance.
The suffix HE or EE indicates a high-efficiency/energy-efficiency model having a lower TDP than a standard Opteron. The suffix SE indicates a top-of-the-line model having a higher TDP than a standard Opteron.
K10 based Opterons.
Third Generation Opterons.
Opteron 1300-series "Suzuka" (45 nm).
115W TDP Page 54 http://support.amd.com/us/Processor_TechDocs/43374.pdf
ARM Cortex A57 based Opterons.
Opteron A1100-series "Seattle" (28nm).
The AMD Opteron A1100 is an enterprise-class ARM Cortex-A57-based SOC.