¿Qué significa cuando en las características del procesador dice “3,5GHZ”?

It means that the processor can  perform 3.5 × 10⁹ clock cycles per second

Explanation:

The processor clock speed is the rate at which the processor clock generator can generate pulses that are then used for the proper operation of the processor's component  in one second, therefore whereby the processor specification is 3.5 GHZ, it means that the processor can  perform 3.5 × 10⁹ clock cycles per second

The higher the clock speed of a given processor, the faster the data processing rate of the processor.

The speed of processors can be higher than 3.8 GHz  and still have more than one core, where a core is the location of the processor that performs calculations and/or operations on received instructions.

answer; fosslls and artifacts;