Processor instruction execution speed?

Question

Processors

Why does the (same) speed of execution of processor instructions (frequency / cache / other) depend / does not depend? Let's take for example some core i3 and core i7, will the AESNI instruction execution speed be faster for the newer one?

Answer 1

1. instruction size and processor capacity
2. processor frequency
3. In terms of executing instructions in a program, the cache allows you to read instructions from RAM into the processor cache in advance and execute instructions without delay
. But this is very superficial. Modern processors and the entire processor-motherboard-memory system is a rather complicated thing, and everything is non-linear there, if we talk about the program, and not individual instructions