Quick answer
Why is my CPU not hitting its maximum boost frequency?
Maximum advertised boost may apply to only some cores and certain workloads; temperature, firmware and power limits also matter.
How to check this on your PC
- Verify the CPU model and the manufacturer’s boost conditions
- Test a short single-core workload rather than only a full-core test
- Inspect temperature and active power-limit indicators
How to confirm the result
A correct single-core test should be compared with product specifications.
When comparing results, use the same power scheme, similar ambient temperature and a fixed workload. Save your starting values before experimenting so you can return to them.
Avoid increasing voltage to chase a momentary advertised number.
Frequently asked questions
Why is my CPU not hitting its maximum boost frequency?
Maximum advertised boost may apply to only some cores and certain workloads; temperature, firmware and power limits also matter.
What result should I check after this procedure?
A correct single-core test should be compared with product specifications. Compare the observation with a saved baseline before deciding whether to keep the change.
Which hardware limitation matters here?
Avoid increasing voltage to chase a momentary advertised number. Save original settings so you can reverse any unexpected behavior.