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 microservers, servers, and workstations >

Mobile Device Processors

Alpha Suffix Description Example
U Ultra-low power Intel® Core™ i7-5650U processor

Alpha Suffix Description Example
Y Extremely low power Intel® Core™ M-5Y70 processor

Laptop, Desktop, and Mobile Device Processors

Alpha Suffix Description Example
K Unlocked Intel® Core™ i7-4770K processor
R Desktop processor based on BGA1364 (mobile) package with high performance graphics Intel Core i7-4770R processor
S Performance-optimized lifestyle Intel Core i7-4770S processor
T Power-optimized lifestyle Intel Core i7-4770T processor
HQ High performance graphics Intel® Core™ i7-4700HQ processor
MX Mobile extreme edition Intel Core i7-4940MX processor Extreme Edition
MQ Quad-core mobile Intel Core i7-4900MQ processor
Intel Core i7-4702MQ processor
M Mobile Intel Core i7-4600M processor
Intel Core i5-4300M processor
U Ultra-low power Intel Core i7-4550U processor
Y Extremely low power Intel Core i7-4610Y processor

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 55 W
T Mobile highly energy efficient processors with TDP 30-39 W
P Mobile highly energy efficient processor with TDP 20-29 W
L Mobile highly energy efficient with TDP 12-19 W
U Mobile ultra high energy efficient with TDP less than or equal to 11.9 W
S Mobile small form factor with 22x22 BGA package