CPUID

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CPUID topic overview

The analysis highlights History, EAX=0: Highest Function Parameter and Manufacturer ID and CPU-specific information outside x86 as prominent areas in the source structure around CPUID. 1 topic appears in more than one source area, which can help identify connections that are less obvious in a linear reading.

Related topics: 109
Source areas: 30
Connected nodes: 140
Extracted relationships: 157
Related term clusters: 45
Bridge connections: 140

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

EAX=0: Highest Function Parameter and Manufacturer ID · 30 topics

CPU-specific information outside x86 · 11 topics

Overview · 9 topics

EAX=4000'0000h-4FFFF'FFFh: Reserved for Hypervisors · 6 topics

EAX=4 and EAX=Bh: Intel Thread/Core and Cache Topology · 5 topics

Calling CPUID · 4 topics

EAX=17h: SoC Vendor Attribute Enumeration · 4 topics

EAX=1: Processor Info and Feature Bits · 4 topics

History · 4 topics

CPUID usage from high-level languages · 3 topics

EAX=0Dh: XSAVE Features and State Components · 3 topics

EAX=15h and EAX=16h: CPU, TSC, Bus and Core Crystal Clock Frequencies · 3 topics

EAX=2: Cache and TLB Descriptor Information · 3 topics

EAX=3: Processor Serial Number · 2 topics

EAX=4 and EAX=8000'001Dh: Cache Hierarchy and Topology · 2 topics

EAX=8000'0001h: Extended Processor Info and Feature Bits · 2 topics

EAX=8FFF'FFFEh and EAX=8FFF'FFFFh: AMD Easter Eggs · 2 topics

EAX=12h: SGX Capabilities · 1 topics

EAX=14h: Processor Trace · 1 topics

EAX=18h: TLB Hierarchy and Topology · 1 topics

EAX=1Eh: Intel AMX Tile Multiplier (TMUL) Information · 1 topics

EAX=2000'0000h: Highest Xeon Phi Function Implemented · 1 topics

EAX=21h: Reserved for TDX enumeration · 1 topics

EAX=8000'0002h,8000'0003h,8000'0004h: Processor Brand String · 1 topics

EAX=8000'0007h: Processor Power Management Information and RAS Capabilities · 1 topics

EAX=8000'000Ah: SVM features · 1 topics

EAX=8C86'0000h: Hygon Extended Feature Flags · 1 topics

EAX=C000'0000h: Highest Centaur Extended Function · 1 topics

EAX=C000'0001h: Centaur Feature Information · 1 topics

EAX=C000'0002h: Centaur Extended CPUID Performance Data · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

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Explore different angles and find fresh ideas to shape your next piece of content.

CPUID

7X86 · Opcode · Processor supplementary instruction

28MMX (instruction set) · Streaming SIMD Extensions · Machine code

4Digital signal processor · Transputer · Texas Instruments

3Stepping (version numbers) · Microarchitecture · Codename

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Calling CPUID

EAX=1: Processor Info and Feature Bits

EAX=2: Cache and TLB Descriptor Information

EAX=3: Processor Serial Number

EAX=4 and EAX=8000'001Dh: Cache Hierarchy and Topology

EAX=4 and EAX=Bh: Intel Thread/Core and Cache Topology

EAX=0Dh: XSAVE Features and State Components

EAX=12h: SGX Capabilities

Software Guard Extensions

EAX=14h: Processor Trace

Branch trace

EAX=15h and EAX=16h: CPU, TSC, Bus and Core Crystal Clock Frequencies

EAX=17h: SoC Vendor Attribute Enumeration

EAX=4000'0000h-4FFFF'FFFh: Reserved for Hypervisors

EAX=8000'0001h: Extended Processor Info and Feature Bits

EAX=8000'0002h,8000'0003h,8000'0004h: Processor Brand String

Rosetta 2

EAX=8000'0007h: Processor Power Management Information and RAS Capabilities

Reliability, availability and serviceability

EAX=8000'000Ah: SVM features

Secure Virtual Machine

EAX=8C86'0000h: Hygon Extended Feature Flags

Hygon

EAX=8FFF'FFFEh and EAX=8FFF'FFFFh: AMD Easter Eggs

EAX=C000'0000h: Highest Centaur Extended Function

WinChip

EAX=C000'0001h: Centaur Feature Information

VIA PadLock

EAX=C000'0002h: Centaur Extended CPUID Performance Data

VIA C7

CPUID usage from high-level languages

CPU-specific information outside x86

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How CPUID connects Entity context

The extracted context around CPUID shows recurring relationship patterns in the source. For example, CPUID → Architecture, Architecture IBM, ARM, Configuration Registers, CPU, EL1, PrId, Processor Identification, Processor Version Register, PVR, STFL, STFLE, STIDP, Store CPU ID, Store Facilities List, Store Facilities List Extended, System/370, The MIPS32/64, The PowerPC, The RISC-V Another extracted example is CPUID → ASCII, CPU, EAX/EBX/ECX/EDX, EBX, ECX, EDX, ID, Intel's, IntelTDX, TD, TDX, TDX-specificTDCALLinstruction, Trust Domain, Trust Domain Extensions, When Intel TDX. Use these groups to spot repeated connection types before inspecting the individual relationships.

Top relations

related to CPU-specific information outside x86 · 20

CPUID → Architecture, Architecture IBM, ARM, Configuration Registers, CPU, EL1, PrId, Processor Identification, Processor Version Register, PVR, STFL, STFLE, STIDP, Store CPU ID, Store Facilities List, Store Facilities List Extended, System/370, The MIPS32/64, The PowerPC, The RISC-V

related to EAX=21h: Reserved for TDX enumeration · 15

CPUID → ASCII, CPU, EAX/EBX/ECX/EDX, EBX, ECX, EDX, ID, Intel's, IntelTDX, TD, TDX, TDX-specificTDCALLinstruction, Trust Domain, Trust Domain Extensions, When Intel TDX

related to EAX=3: Processor Serial Number · 12

CPUID → AMD CPUs, CPU, CPUs, Crusoe, EAX, ECX, EDX, For Intel Pentium III, Intel Pentium III, Processor Serial Number, PSN, Transmeta's Efficeon

related to EAX=8FFF'FFFEh and EAX=8FFF'FFFFh: AMD Easter Eggs · 12

CPUID → Additionally, AMD K6 CPUs, DEI, Easter, EAX, EBX, ECX, EDX, FFFEh, FFFFh, Known Easter Egg, Several AMD CPU

related to EAX=4000'0000h-4FFFF'FFFh: Reserved for Hypervisors · 11

CPUID → AMD-v, CPUIDleaves40000000hto4FFFFFFFhare, EAX, EBX, ECX, EDX, Hv, Hyper-V, Hypervisors, ID, Intel VT-x

related to EAX=8000'0002h,8000'0003h,8000'0004h: Processor Brand String · 11

CPUID → AMD Ryzen, ASCII, CPU, CPUIDmust, DM, EAX, EBX, ECX, EDX, Intel/AMD, Vortex86DX3

related to Calling CPUID · 9

CPUID → A2, CPU, CPUIDshould, EAX, EFLAGS, ID, In Intel's, Processor, TheCPUIDopcode

related to EAX=17h: SoC Vendor Attribute Enumeration · 8

CPUID → CPU, CPU IP, EAX, EBX/ECX/EDX, ECX, SoC, Sub-leaf, System

related to EAX=2: Cache and TLB Descriptor Information · 8

CPUID → EAX, EAX/EBX/ECX/EDX, EBX, ECX, EDX, FFhindicates, TLB, TLBs

related to EAX=4 and EAX=8000'001Dh: Cache Hierarchy and Topology · 8

CPUID → AMD, CPU, EAX, EBX, ECX, EDX, Intel, Leaf4is

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

eax information ecx processor leaf edx ebx intel processors cpu id returns feature amd returned string also return bits used

CPUID relationships Subject–Predicate–Object triples

TTTA extracted 157 structured relationships around CPUID. Examples in this analysis include MMX/SSE are implemented → instance of → It was introduced by Intel in 1993 with the launch of the Pentium and late 486 processors.A program can use theCPUIDto determine processor type and whether features and CPUID → related to Calling CPUID → TheCPUIDopcode. The table shows each extracted connection, where it came from and its confidence.

Subject	Predicate	Object	Confidence	Src
MMX/SSE are implemented	instance of	It was introduced by Intel in 1993 with the launch of the Pentium and late 486 processors.A program can use theCPUIDto determine processor type and whether features	0.80	text
CPUID	related to Calling CPUID	TheCPUIDopcode	0.60	section
CPUID	related to Calling CPUID	A2	0.60	section
CPUID	related to Calling CPUID	Processor	0.60	section
CPUID	related to Calling CPUID	ID	0.60	section
CPUID	related to Calling CPUID	EFLAGS	0.60	section
CPUID	related to Calling CPUID	EAX	0.60	section
CPUID	related to Calling CPUID	In Intel's	0.60	section
CPUID	related to Calling CPUID	CPUIDshould	0.60	section
CPUID	related to Calling CPUID	CPU	0.60	section
CPUID	related to CPU-specific information outside x86	CPU	0.60	section
CPUID	related to CPU-specific information outside x86	ARM	0.60	section

Related concept clusters Related term clusters

The concept neighborhoods around CPUID bring nearby vocabulary together. In this analysis, examples include Processor, Eax and Intel. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

CPUID
- Processor
- Eax
- Intel
- Processors
- Information
- Also
- Return
- Returned
- Instruction
- Ecx
- Amd
- Core
cpuid
- Processor
- Eax
- Intel
- Processors
- Information
- Also
- Return
- Returned
- Instruction
- Ecx
- Amd
- Core
processor supplementary instruction
- Processors
- Returned
- Processor
- String
- Leaf
- Used
- Provides
- Register
- Cpus
- Edx
- Also
- Information
cpu
- Amd
- String
- Information
- Instruction
- Set
- Ecx
- Cpus
- Edx
- Eax
- Leaf
- Register
- Feature
intel
- Processor
- String
- Amd
- Cpus
- Processors
- Feature
- Number
- Used
- Also
- Returned
- Eax
- Ecx
amd
- String
- Intel
- Cpus
- Return
- Cpu
- Also
- Processors
- Ebx
- Core
- Cpuid
- Id
- Edx
amd k5
- String
- Intel
- Cpus
- Return
- Cpu
- Also
- Processors
- Ebx
- Core
- Cpuid
- Id
- Edx
soft cpu cores
- Amd
- String
- Information
- Instruction
- Set
- Ecx
- Cpus
- Edx
- Eax
- Leaf
- Register
- Feature

Connections between topic areas Semantic bridges

For CPUID, one of the stronger structural bridges in this analysis connects CPUID with EAX=0: Highest Function Parameter and Manufacturer ID. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3

CPUID — EAX=0: Highest Function Parameter and Manufacturer ID · splits 110 ⟂ 31

CPUID — CPU-specific information outside x86 · splits 129 ⟂ 12

CPUID — Overview · splits 131 ⟂ 10

CPUID — EAX=4000'0000h-4FFFF'FFFh: Reserved for Hypervisors · splits 134 ⟂ 7

CPUID — EAX=4 and EAX=Bh: Intel Thread/Core and Cache Topology · splits 135 ⟂ 6

CPUID — History · splits 136 ⟂ 5

CPUID — Calling CPUID · splits 136 ⟂ 5

CPUID — EAX=1: Processor Info and Feature Bits · splits 136 ⟂ 5

CPUID — EAX=17h: SoC Vendor Attribute Enumeration · splits 136 ⟂ 5

CPUID — EAX=2: Cache and TLB Descriptor Information · splits 137 ⟂ 4

CPUID — EAX=0Dh: XSAVE Features and State Components · splits 137 ⟂ 4

CPUID — EAX=15h and EAX=16h: CPU, TSC, Bus and Core Crystal Clock Frequencies · splits 137 ⟂ 4

CPUID — CPUID usage from high-level languages · splits 137 ⟂ 4

CPUID — EAX=3: Processor Serial Number · splits 138 ⟂ 3

CPUID — EAX=4 and EAX=8000'001Dh: Cache Hierarchy and Topology · splits 138 ⟂ 3

CPUID — EAX=8000'0001h: Extended Processor Info and Feature Bits · splits 138 ⟂ 3

CPUID — EAX=8FFF'FFFEh and EAX=8FFF'FFFFh: AMD Easter Eggs · splits 138 ⟂ 3

Map overview Semantic statistics

CPUID

Nodes141

Edges140

Triples157

Avg. degree1.99

Density0.014184

Components1

Source & methodology

TTTA analyzes the structure around CPUID to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, EAX=0: Highest Function Parameter and Manufacturer ID & CPU-specific information outside x86, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — CPUID · EN edition · Analysis: TopicsToTalkAbout

CPUID topic overview

What this topic covers Research coverage

Key facts & relationships

Start with your topic. Discover where to go next.

Questions to explore

Explore all related topics Closing gaps

Overview

History

Calling CPUID

EAX=0: Highest Function Parameter and Manufacturer ID

EAX=1: Processor Info and Feature Bits

EAX=2: Cache and TLB Descriptor Information

EAX=3: Processor Serial Number

EAX=4 and EAX=8000'001Dh: Cache Hierarchy and Topology

EAX=4 and EAX=Bh: Intel Thread/Core and Cache Topology

EAX=0Dh: XSAVE Features and State Components

EAX=12h: SGX Capabilities

EAX=14h: Processor Trace

EAX=15h and EAX=16h: CPU, TSC, Bus and Core Crystal Clock Frequencies

EAX=17h: SoC Vendor Attribute Enumeration

EAX=18h: TLB Hierarchy and Topology

EAX=1Eh: Intel AMX Tile Multiplier (TMUL) Information

EAX=21h: Reserved for TDX enumeration

EAX=2000'0000h: Highest Xeon Phi Function Implemented

EAX=4000'0000h-4FFFF'FFFh: Reserved for Hypervisors

EAX=8000'0001h: Extended Processor Info and Feature Bits

EAX=8000'0002h,8000'0003h,8000'0004h: Processor Brand String

EAX=8000'0007h: Processor Power Management Information and RAS Capabilities

EAX=8000'000Ah: SVM features

EAX=8C86'0000h: Hygon Extended Feature Flags

EAX=8FFF'FFFEh and EAX=8FFF'FFFFh: AMD Easter Eggs

EAX=C000'0000h: Highest Centaur Extended Function

EAX=C000'0001h: Centaur Feature Information

EAX=C000'0002h: Centaur Extended CPUID Performance Data

CPUID usage from high-level languages

CPU-specific information outside x86

For the semantics nerds

Advanced semantic analysis

How CPUID connects Entity context

CPUID

Top relations

Important terminology

Important terminology

CPUID relationships Subject–Predicate–Object triples

Related concept clusters Related term clusters

Connections between topic areas Semantic bridges

Map overview Semantic statistics

CPUID

Source & methodology