CPU-Z is able to show various information about your processor, such as the name and manufacturer, frequency, manufacturing process, frequency multiplier, partly determined by the "overclocking" of the processor. In addition, information about the cache of the first and second levels, supported instruction sets, and so on... Sometimes processors with the same name hide unequal "stuffing" - different cores with different steppings, capabilities, different frequencies with the same rating, produced by different technical processes, etc. Some of this data could be obtained by examining the inscriptions on the processor cover, but, as a rule, they are securely hidden in the system unit under the cooler and a layer of thermal paste. Therefore, a much more convenient way to obtain such information would be to use the CPU-Z utility.