AMD64 architecture

E84586
computer architecture instruction set architecture

The AMD64 architecture is a 64-bit instruction set architecture introduced by AMD that extends the x86 design to support larger memory addressing and enhanced performance while maintaining backward compatibility with 32-bit software.

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All labels observed (10)

Label Occurrences
AMD64 6
x86-64 5
Intel x86-64 2

Statements (50)

Predicate Object
instanceOf computer architecture ⓘ
instruction set architecture ⓘ
addsFeature 64-bit general-purpose registers ⓘ
64-bit integer operations ⓘ
64-bit virtual address space ⓘ
NX bit support ⓘ
SSE2 as baseline ⓘ
additional general-purpose registers ⓘ
instruction pointer relative addressing ⓘ
new calling conventions ⓘ
alsoKnownAs Intel 64 ⓘ
surface form: Intel 64 (compatible variant)

AMD64 architecture ⓘ
surface form: x86-64

AMD64 architecture ⓘ
surface form: x86_64
architectureFamily x86 ⓘ
backwardCompatibleWith IA-32 ⓘ
x86 ⓘ
bitWidth 64-bit ⓘ
category 64-bit microprocessor architecture ⓘ
designedFor enhanced performance over 32-bit x86 ⓘ
larger memory addressing ⓘ
developer Advanced Micro Devices ⓘ
surface form: AMD

Advanced Micro Devices ⓘ
extends IA-32 ⓘ
surface form: IA-32 architecture

x86 register set ⓘ
generalPurposeRegistersCount 16 ⓘ
influenced Intel 64 ⓘ
surface form: Intel 64 architecture
introduced 2003 ⓘ
introducedBy AMD Athlon 64 processors ⓘ
AMD Opteron processors ⓘ
maintains backward compatibility with 32-bit applications ⓘ
physicalAddressSize implementation dependent ⓘ
registerWidth 64 bits ⓘ
supports 16-bit real mode (in legacy mode) ⓘ
32-bit software ⓘ
64-bit computing ⓘ
compatibility mode ⓘ
legacy mode ⓘ
long mode ⓘ
paging ⓘ
virtual memory ⓘ
supportsOperatingSystem BSD x86-64 ⓘ
Linux x86-64 ⓘ
Windows ⓘ
surface form: Windows x64

macOS ⓘ
surface form: macOS (on Intel-based Macs)
usedIn desktop computers ⓘ
laptop computers ⓘ
servers ⓘ
workstations ⓘ
virtualAddressSize typically 48 bits in early implementations ⓘ
wordSize 64 bits ⓘ

Referenced by (20)

Full triples — surface form annotated when it differs from this entity's canonical label.

AMD processors → implements → AMD64 architecture ⓘ
Apple Safari → supportsArchitecture → AMD64 architecture ⓘ
this entity surface form: Intel x86-64
Advanced Micro Devices → architecture → AMD64 architecture ⓘ
this entity surface form: x86-64
Advanced Micro Devices → introduced → AMD64 architecture ⓘ
this entity surface form: AMD64 instruction set architecture
Solaris operating system → supportsArchitecture → AMD64 architecture ⓘ
subject surface form: Solaris
this entity surface form: AMD64
AMD64 architecture → alsoKnownAs → AMD64 architecture ⓘ
this entity surface form: x86-64
AMD64 architecture → alsoKnownAs → AMD64 architecture ⓘ
this entity surface form: x86_64
IA-32 → successor → AMD64 architecture ⓘ
this entity surface form: x86-64
SSE2 → requiredBy → AMD64 architecture ⓘ
this entity surface form: AMD64 specification
x86 → influenced → AMD64 architecture ⓘ
this entity surface form: x86-64
AMD Sempron → supports → AMD64 architecture ⓘ
this entity surface form: AMD64
Arch User Repository → hostPlatform → AMD64 architecture ⓘ
this entity surface form: x86_64 Arch Linux
Apple silicon transition → previousArchitecture → AMD64 architecture ⓘ
this entity surface form: Intel x86-64
Orbis OS → architectureSupport → AMD64 architecture ⓘ
this entity surface form: x86-64
Slamd64 → architecture → AMD64 architecture ⓘ
this entity surface form: AMD64
Threshold → architectureSupport → AMD64 architecture ⓘ
this entity surface form: x64
Sempron → supports → AMD64 architecture ⓘ
this entity surface form: AMD64
AMD Opteron → architecture → AMD64 architecture ⓘ
this entity surface form: AMD64
AMD Athlon 64 processors → architecture → AMD64 architecture ⓘ
subject surface form: AMD Athlon 64
this entity surface form: AMD64
BSD x86-64 → compatibleWith → AMD64 architecture ⓘ
this entity surface form: AMD64 processors