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The Meaning of CPU Suffix Letters

October 26, 2021

There are some people are curious about the meaning of CPU model suffix letters, such as the suffix U of i5-4200U means the ultra-low power. In fact, different suffixes convey product information about the corresponding CPU.

Below is a list of Intel CPU suffix letters:
H: High performance graphics;
K:Unlocked frequency multiplier, which is typically much more expensive gamer CPUs;
M: Mobile as in laptops, tablets and so on;
Q: Quad-core;
S: Performance-optimized lifestyle;
T: Power-optimized lifestyle and typically lower performance;
U: Ultra-low power;
X: Extreme edition which is typically gamer and workstation CPU’s with as many as 10 cores
Y: Extremely low power which is typically used in tablets and Ultrabook’s.

As for i3, i5 and i7 CPUs, Sunany applies the CPU with suffix of U which are same as the CPU of laptop. These kinds of CPUs are able to reduce power consumption under the premise of ensuring working performance. Due to ultra-low power, POS machine generates less heat, so it can the demand of long-run usage on POS machines.



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