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About Intel® Processor Numbers

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.

View processor specifications and compare processors 

View processor performance benchmarks 

View processor numbers for desktops and mobile 

Microserver, Server, and Workstation Processors

Alpha Suffix Description Example
C Microserver Intel® Atom™ processor C2750

Intel® Xeon® Processor Families and their Number Sequence

Processor Family Product Line System Type
Intel® Xeon® processor E7 Multi-processor
Intel® Xeon® processor E5 Multi-processor
Intel® Xeon® processor E3 Single-processor

Alpha Prefix Description
X Performance
E Mainstream (rack-optimized)
L Power-optimized

Intel® Xeon® and Intel® Itanium® Processor Families and their Number Sequence

Processor Family Number Sequence System Type
Intel® Itanium® processor 9000 Multi-processor and dual-processor
Intel® Xeon® processor 7000 Multi-processor
Intel® Xeon® processor 5000 Dual-processor
Intel® Xeon® processor 3000 Single-processor

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