The processor number is one of several factors, along with processor brand, specific system configurations, and system-level benchmarks, to be considered when choosing the right processor for your computing needs.
A higher number within a processor class or family generally indicates more features, but it may be more of one and less of another. Once you decide on a specific processor brand and type, compare processor numbers to verify the processor includes the features you are looking for.
Processor numbers for the Intel® Atom™ processor family are categorized by a four-digit numerical sequence. Server class Intel® Atom™ processors have an alpha prefix of C.
The latest Intel® Xeon® processor numbering system is an alpha numeric representation of product line, product family, and version. Where applicable, an alpha suffix appears at the end of the processor name, which represents the processor line. The version number will not be used in the first processor generation.
Intel® Xeon® and Intel® Itanium® processor numbers are categorized in four digit numerical sequences, and may have an alpha prefix to indicate power and performance.