beginner · cpu

Is 4 GHz Always Faster Than 3 GHz?

Is a 4 GHz CPU always faster than a 3 GHz CPU?

Practical scenario

A team is choosing between two cloud instance types. One advertises a higher boost clock; the other has more cores and a newer microarchitecture. Someone proposes picking on GHz alone.

What it tests

  • Whether clock speed is understood as one factor among several
  • Knowledge that work per cycle varies by microarchitecture
  • Awareness that many workloads are not compute-limited at all

Lessons behind this question