why does CPUs/CPU cores seem to be capped at 3 – 4 Ghz since almost a decade?

Question

why does CPUs/CPU cores seem to be capped at 3 – 4 Ghz since almost a decade?

In: 1368

Answer 1

CPUs run in clock cycles per second (hz) as you know. While more clock cycles per second is faster than less, this is only true if you have the exact same hardware. If you have a chip with 1000 transistors and one with 2, the one with 2 will be able to technically completely more clocks per second, but that doesn’t mean it does more computation.

TLDR; HZ isn’t the only measure of CPU efficiency.