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Laptop, Desktop, and Mobile Device Processors

3rd generation Intel Core processor familyProcessor numbers for the 3rd generation Intel Core processor family have an alpha/numerical identifier followed by a four digit numerical sequence (3xxx), and may have an alpha suffix

depending on the processor. The table below explains the alpha suffixes used for the 3rd generation Intel Core processor family.

Alpha Suffix Description Example

K Unlocked i7-3770K/i5/3570K

QM Quad-Core Mobile i7-3820QM/i7-3720QM

S Performance optimized lifestyle i7-3770S/i5-3550S

T Power optimized lifestyle i7-3770T/i5-3570T

2nd generation Intel Core processor familyProcessor numbers for the 2nd generation Intel Core processor family have an alpha/numerical identifier followed by a four digit numerical sequence, and may have an alpha suffix depending on

the processor. The table below explains the alpha suffixes used for the 2nd generation Intel Core processor family.

Alpha Suffix Description Example

K Unlocked i7-2600K/i5-2500K

S Performance optimized lifestyle i5-2500S/i5-2400S

T Power optimized lifestyle i5-2500T/i5-2390T

Processor numbers for the Previous Generation Intel Core processor family have an alpha/numerical identifier followed by a three digit numerical sequence.

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Processor numbers for the Intel Core2 processor family brands are categorized with an alpha prefix followed by a four digit numerical sequence. The table below explains the alpha prefixes used

for the Intel Core2 processor families.

Alpha Prefix Description

QX Desktop or mobile quad-core extreme performance processors

X Desktop or mobile dual-core extreme performance processors

Q Mobile quad-core high performance processors

E Desktop energy efficient dual-core processors with TDP greater than or equal to 55W

T Mobile highly energy efficient processors with TDP 30-39W

P Mobile highly energy efficient processor with TDP 20-29 W

L Mobile highly energy efficient with TDP 12-19W

U Mobile ultra high energy efficient with TDP less than or equal to 11.9W

S Mobile small form-factor with 22x22 BGA package

Processor numbers for the Intel Core2 Quad family have an alpha prefix followed by a four digit numerical sequence. Additionally, low power Intel Core2 Quad processors are identifiable by an "S"

suffix which represents processors having a lower thermal design power.

Intel Atom processorsProcessor numbers for the Intel Atom processor family are categorized by a three digit numerical sequence. Netbook class Intel Atom processors have an alpha prefix of N, and Intel Atom

processors with an alpha prefix of Z indicate the processor is for Mobile Internet Devices (MIDs).

A higher number within a processor class or family generally indicates more features. A higher processor number may have more of one feature and less of another.

Intel Pentium processorsProcessor numbers for the Intel Pentium brand have an alpha prefix followed by a four character numerical sequence. All are desktop energy-efficient dual-core processors with TDP that is greater

than or equal to 65W.

A higher number within a processor class or family generally indicates more features such as cache, clock speed, Front Side Bus or other Intel technologies. A higher number processor may also

have more of one feature and less of another.

Intel Celeron processorsProcessor numbers for the Intel Celeron brand are expressed with either a three digit numerical sequence or a five c haracter sequence with an alphabetical prefix and four digits, depending on

the processor type.

A higher number within a processor class or family generally indicates more features such as cache, clock speed, Front Side Bus or other Intel technologies. A higher number processor may alsohave more of one feature and less of another.




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Server and Workstation Processors

Intel Xeon processor E3, E5, and E7 and Intel Xeon Phi familiesThe latest Intel Xeon processor numbering system is an alpha numeric representation of product line, product family, and version. An L suffix will be used to identify a low power processor. The

version number will not be used in the first processor generation.

Intel Xeon processor families and product lines

Processor Family Product Line System Type

Intel Xeon processor E7 Multi-processor

Intel Xeon processor E5 Multi-processor

Intel Xeon processor E3 Single-processor

Intel Xeon and Intel Itanium processorsIntel Xeon and Intel Itanium processor numbers are categorized in four digit numerical sequences, and may have an alpha prefix to indicate power and performance.

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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