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Intel processor sequences are intended to help developers select the best processor for a particular

platform design. Intel offers three processor number sequences for server applications (see Table 1).

Intel processor series numbers within a sequence (for example, 5100 series) help differentiate

processor features such as number of cores, architecture, cache, power dissipation, and embedded

Intel technologies.

Intel processor sequences

Table 1.

Processor sequence

Two-Core Intel® Xeon™ processor 3000 sequence

Two-Core and Four-Core Intel

5000 sequence

Two-Core, Four-Core, and Six-Core Intel

processor 7000 sequence

Intel enhances the microarchitecture of a family of processors over time to improve performance and

capability while maintaining compatibility with the processor architecture. One method to enhance

the microarchitectures involves changing the silicon process technology. For example, Figure 2 shows

that Intel enhanced NetBurst-based processors in 2004 by changing the manufacturing process from

130nm to 90nm silicon process technology.

In the second half of 2006, Intel launched the Core® microarchitecture, which is the basis for the

multi-core Xeon 5000 Sequence processors, including the first four-core Xeon processor (Clovertown).

Beginning with the Penryn family of processors, Intel enhanced the performance and energy efficiency

of Intel Core microarchitecture-based processors by switching from 65nm to 45nm Hi-k

technology with the hafnium-based high-K + metal gate transistor design. In 2009, Intel produced the

first processors based on the "next generation" Nehalem microarchitecture.

Figure 2. Intel microarchitecture introductions and associated silicon process technologies for industry-standard

servers

Hi-k, or High-k, stands for high dielectric constant, a measure of how much charge a material can hold. For

more information, refer to

k.htm?iid=tech_arch_45nm+body_hik.

Xeon

processor

Xeon

http://www.intel.com/technology/silicon/high-

Platform

Uni-processor servers

Two-processor high-volume servers and workstations

Enterprise servers with 4 to 32 processors

process