SpeedStep
Let an agent explain SpeedStep and dynamic frequency scaling, relay how operating systems control it, describe its role in power management, and distinguish it from turbo boost and from other vendor implementations.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What SpeedStep is.
Definition
Definition and mechanism.
Definition
Definition.
- What is SpeedStep, and how does lowering frequency and voltage save power? definition
- Is the question about SpeedStep, Turbo Boost or another vendor technology? boundary
Versions
Versions.
Versions
Versions.
- How do original, Enhanced SpeedStep and Speed Shift differ? definition
- Which entry fits the specific version? action
Control Operating system control.
ACPI
ACPI and P-states.
ACPI
ACPI.
- How do operating systems manage P-states through ACPI and governors? provenance
- Which references are standard? provenance
Settings
User settings.
Settings
Settings.
- How can users view and configure frequency scaling on common operating systems, in general terms? provenance
- Which entry fits power management in operating systems? action
Effects Performance and power.
Power
Power savings.
Power
Power.
- How much power and heat do such techniques save, as measured in reports? provenance
- Which sources are cited? provenance
Performance
Performance impact.
Performance
Performance.
- How does frequency scaling affect performance and latency? provenance
- Which entry fits processor performance? action
Context History and alternatives.
History
History.
History
History.
- How did SpeedStep develop from 2000 onward, and how did it shape laptop design? provenance
- Which entry fits the history of mobile computing? action
Alternatives
Other vendors.
Alternatives
Alternatives.
- What equivalent technologies exist from AMD, Arm and others? provenance
- Which entry fits the specific technology? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.QTY
What it is Filled
A dynamic frequency and voltage scaling technology in Intel processors, introduced in 2000 for mobile chips, that lowers clock speed and core voltage when full performance is not needed to reduce power consumption and heat, with Enhanced SpeedStep adding finer operating points controlled by the operating system through ACPI; SpeedStep is a brand for a general technique also implemented by other vendors under names such as PowerNow and Cool n Quiet.
Why it exists Filled
Let an agent explain SpeedStep and dynamic frequency scaling, relay how operating systems control it, describe its role in power management, and distinguish it from turbo boost and from other vendor implementations.
Distinguishing features Filled
- Frequency and voltage steps
- OS-controlled via ACPI
- Mobile origin
- Vendor brand for a general technique
What robots and AI may and may not do Filled
Must not
- Disable power or thermal management in a way that lets a processor overheat.
- Change power settings on a machine it does not administer.
- Present the brand as the only implementation of frequency scaling.
- Use power behaviour to fingerprint or track a user's activity without consent.
Only with a human decision
- Applying firmware or power policy changes across a fleet of machines.
May
- Explain how the technique saves power by scaling processor frequency and voltage.
- Configure power plans on systems it administers, following the owner's preferences.
Moral aspects Filled
- Power management cuts energy use and heat, which matters for battery life and the climate.
- Power side channels can leak private information if misused.
Who is affected
- Computer users
- Administrators
Owners Filled
Steward
The device owner; the processor vendor answers for the feature.
Links to other meta-models Filled
parent
- Q2027240 - registry parent class
related
- dynamic frequency scaling - in registry terms
- Intel processor - families
- ACPI - performance states
- Intel Turbo Boost - which raises frequency
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.speedstep
- Wikidata: Q1152875 (https://www.wikidata.org/wiki/Q1152875)
Direct properties not applicable Not applicable
- introduced: 2000 year - Mobile Pentium III
Plane XCT: no invented physical properties.
Recognition optional Filled
- Intel dynamic frequency and voltage scaling
- SpeedStep, Enhanced SpeedStep, Speed Shift
- Turbo Boost raises frequency above base; PowerNow and Cool n Quiet are AMD equivalents
- Not a visible object; a processor feature exposed in firmware and OS settings.
Capabilities and actions required Filled
- explain the technology
- relay OS control mechanisms
- describe power management role
- distinguish from related technologies
Hazards and failure modes required Filled
- Performance loss when misconfigured
- Confusing brand names across vendors
- Stale details after processor generations
Standards and interfaces required Filled
- ACPI specification for processor performance states
- Energy efficiency regulations for computers such as Energy Star
Context of use required Filled
- Reducing processor power consumption.
- original SpeedStep with two states
- Enhanced Intel SpeedStep with multiple P-states
- Speed Shift with hardware-controlled states
- equivalent technologies from AMD, Arm and others
- dynamic voltage and frequency scaling in general
Sources Filled
- Wikidata item Q1152875: SpeedStep - identity and sense of the item
- Wikipedia: SpeedStep - general description of the item
Open questions
- Should dynamic voltage and frequency scaling be the primary linked entry?
- How should Intel documentation be linked?
- How should successor technologies be recorded?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1152875/spec.json