Underclocked

[Skyet]

Hi Team, 

Can you confirm if the CPU U7-155U is not underclocked?

[NonSequitur777]

@Skyet,

Welcome to our HP Community forum!

An interesting question.

So, let's see what the specs show:

According to Intel’s official spec sheet:

• The Ultra 7-155U has a Performance-core (P-core) base frequency of 1.70 GHz.

• It can Turbo up to 4.80 GHz on those P-cores when conditions (power, thermal headroom) allow.

• There are also “Efficient cores” (E-cores) which have lower base/turbo frequencies. Eg: E-core base ~1.20 GHz, turbo up to ~3.80 GHz. And there are “Low-Power E-cores” etc.

• The “base power” or TDP (typical power) is 15-watt; but under heavier load the CPU may draw more (Turbo power / PL2), subject to thermal & power restrictions.

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Is it “underclocked”?

“Underclocked” means “running below what the CPU is capable of” -either by design (power limits, thermal limits) or due to issues (bad cooling, power settings, firmware).

From the public specs: No, the CPU is not underclocked in its design. The base frequency of 1.70 GHz on the P-cores is intentional, and the turbo to 4.80 GHz is there. So, at idle or moderate load or when hitting power limits, it will run at lower frequencies. That’s expected.

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But in practice, you might be experiencing effective underclocking:

Even though the CPU is designed to run with those base/turbo specs, many factors can force it to run below those:

• Thermal throttling: If the laptop gets hot, it may reduce clock speeds to avoid overheating.

• Power limits / firmware / BIOS settings: HP can (and often does) set power profiles that cap PL1 / PL2 lower, or limit how long turbo can run.

• Power mode in Windows: If you’re in “power saver” or a balanced mode that is conservative, that can hold things down.

• Background loads or inadequate cooling/ventilation.

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Summarizing “Can you confirm if the CPU 155U is not underclocked?” -I would say:

• Yes, by spec the CPU is not permanently underclocked  -it has set base/turbo frequencies and power-limits that allow boosted performance.

• But yes, in real‐use it may be running under its turbo clock part of the time if power, thermal, or firmware constraints are active.

Kind Regards,

NonSequitur777