CPU such as suffix \"U\" (low-power version with core graphics card), \"H\" (high-performance version with core graphics card), \"HX\" R3 3400G This suffix letter with \"G\" for the integrated Vega graphics card processor, that is, often said APU. (Usually AMD processors do not have a core graphics card) there is also a \"GE\" suffix in the \"G\" suffix, such as R3 3200GE indicates a low-power processor with a core graphics card, which is mostly used in all-in-one PCS.
x stands for xfr automatic overclocking technology (but later does not carry the same x, and the average physical reasons for the effect is general).
x is more for high frequency.
g stands for nuclear display series.
u stands for ultra-low power mobile cpu.
h stands for standard power mobile cpu.