Itanium

E190924

Itanium is a 64-bit server processor architecture developed by Intel (with early collaboration from HP) that was designed for high-end enterprise and technical computing but ultimately saw limited adoption and was discontinued.

All labels observed (19)

How this entity was disambiguated

Statements (75)

Predicate Object
instanceOf 64-bit instruction set architecture ⓘ
microprocessor architecture ⓘ
adoptionLevel limited adoption ⓘ
alternativeName IA-64 ⓘ
linked to: Itanium
architectureType EPIC ⓘ
backwardCompatibility not binary compatible with x86 ⓘ
not binary compatible with x86-64 ⓘ
bitWidth 64-bit ⓘ
competitionFrom AMD Opteron ⓘ
IBM POWER ⓘ
linked to: IBM Power Systems

Intel Xeon ⓘ
SPARC ⓘ
x86-64 ⓘ
designGoal explicit parallelism in instruction encoding ⓘ
high instruction-level parallelism ⓘ
reliability and availability ⓘ
scalability for large multiprocessor systems ⓘ
support for very large memory ⓘ
developer Hewlett-Packard ⓘ
Intel ⓘ
linked to: Intel Corporation
discontinuationStatus discontinued ⓘ
emulationSupport x86 code via software emulation ⓘ
endianSupport big-endian ⓘ
little-endian ⓘ
finalGeneration Kittson ⓘ
finalShipmentsEnded 2021 ⓘ
firstCommercialCPU Itanium (Merced) ⓘ
linked to: Itanium
firstCommercialReleaseYear 2001 ⓘ
fullName Intel Itanium architecture ⓘ
linked to: Itanium
initialCodename Merced ⓘ
intendedUse enterprise resource planning ⓘ
high-performance computing ⓘ
large-scale databases ⓘ
mainframe-class workloads ⓘ
keyFeature advanced branch prediction mechanisms ⓘ
explicitly encoded instruction parallelism ⓘ
hardware support for reliability, availability, and serviceability ⓘ
large register files ⓘ
predication support ⓘ
speculative loads ⓘ
very long instruction word bundles ⓘ
laterCodename Kittson ⓘ
Madison ⓘ
Montecito ⓘ
Montvale ⓘ
Poulson ⓘ
Tukwila ⓘ
legacy example of commercially unsuccessful high-risk ISA transition ⓘ
influenced research and design in EPIC and ILP architectures ⓘ
manufacturingProcess CMOS ⓘ
marketOutcome commercial disappointment ⓘ
operatingSystemSupport HP-UX ⓘ
Linux distributions ⓘ
NonStop OS ⓘ
OpenVMS ⓘ
Windows Server (selected versions) ⓘ
linked to: Windows Server
primaryVendorSystem HP Integrity servers ⓘ
HP Superdome servers ⓘ
reasonForLimitedAdoption high platform and porting costs ⓘ
lack of backward compatibility with x86 ⓘ
narrow software ecosystem ⓘ
strong competition from x86-64 servers ⓘ
registerType branch registers ⓘ
floating-point registers ⓘ
general-purpose registers ⓘ
predicate registers ⓘ
strategicRole Intel attempt to replace x86 in high-end servers ⓘ
successorCodename McKinley ⓘ
successorMicroarchitecture Itanium 2 ⓘ
linked to: Itanium
targetMarket high-end enterprise computing ⓘ
mission-critical systems ⓘ
servers ⓘ
technical computing ⓘ
vendorLockIn primarily used in HP systems ⓘ
wordSize 64 bits ⓘ

How these facts were elicited

Referenced by (54)

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

Windows XP → platform → Itanium ⓘ
HP-UX → supportsArchitecture → Itanium ⓘ
x86 → influenced → IA-64 ⓘ
linked to: Itanium
Intel processors → productLineIncludes → Intel Itanium ⓘ
linked to: Itanium
Windows Server 2003 → platform → Itanium ⓘ
Itanium → fullName → Intel Itanium architecture ⓘ
linked to: Itanium
Itanium → alternativeName → IA-64 ⓘ
linked to: Itanium
Itanium → firstCommercialCPU → Itanium (Merced) ⓘ
linked to: Itanium
Itanium → successorMicroarchitecture → Itanium 2 ⓘ
linked to: Itanium
Windows Server 2008 → platform → Itanium ⓘ
Windows Server 2008 → edition → Itanium-Based Systems Edition ⓘ
linked to: Itanium
VMS → runsOn → Itanium ⓘ
HP PA-RISC → successor → Intel Itanium ⓘ
linked to: Itanium
libunwind → supports → Itanium architecture ⓘ
linked to: Itanium
GNU As → supportsTarget → IA-64 ⓘ
linked to: Itanium
UEFI → compatibleWith → Itanium architecture ⓘ
linked to: Itanium
HP Integrity Virtual Machines → targetHardwareArchitecture → Intel Itanium ⓘ
linked to: Itanium
Intel VT-i → architecture → Intel Itanium architecture ⓘ
linked to: Itanium
Intel VT-i → appliesTo → Itanium 2 processors ⓘ
linked to: Itanium
Intel VT-i → platform → Intel Itanium platform ⓘ
linked to: Itanium
Microsoft Trident engine → platform → IA-64 ⓘ
linked to: Itanium
McKinley → codenameFor → Intel Itanium 2 ⓘ
linked to: Itanium
McKinley → architecture → IA-64 ⓘ
linked to: Itanium
McKinley → predecessor → Itanium (Merced) ⓘ
linked to: Itanium
McKinley → marketName → Itanium 2 ⓘ
linked to: Itanium
McKinley → instructionSet → IA-64 ISA ⓘ
linked to: Itanium
Poulson → architectureFamily → Itanium ⓘ
Poulson → instructionSet → IA-64 ⓘ
linked to: Itanium
Kittson → architecture → Itanium ⓘ
Kittson → productLine → Intel Itanium ⓘ
linked to: Itanium
Kittson → platform → Itanium server platform ⓘ
linked to: Itanium
Kittson → family → Itanium 9000-series (planned) ⓘ
linked to: Itanium
Kittson → instructionSet → IA-64 ⓘ
linked to: Itanium
HP Integrity servers → basedOnProcessorArchitecture → Intel Itanium ⓘ
linked to: Itanium
HP Integrity servers → supportsProcessorArchitecture → Intel Itanium ⓘ
linked to: Itanium
HP Integrity servers → supportsProcessorArchitecture → Intel Itanium 2 ⓘ
linked to: Itanium
Madison → architecture → Itanium ⓘ
Madison → instructionSetArchitecture → IA-64 ⓘ
linked to: Itanium
Madison → family → Itanium 2 ⓘ
linked to: Itanium
Madison → productLine → Intel Itanium 2 ⓘ
linked to: Itanium
Merced → codenameFor → Intel Itanium 64-bit server processor ⓘ
linked to: Itanium
Merced → codenameFor → Hewlett-Packard Itanium 64-bit server processor ⓘ
linked to: Itanium
Merced → generation → first-generation Itanium ⓘ
linked to: Itanium
Merced → architecture → IA-64 ⓘ
linked to: Itanium
Merced → processorFamily → Itanium ⓘ
Merced → commercialName → Itanium ⓘ
Merced → instructionSet → IA-64 instruction set architecture ⓘ
linked to: Itanium
Merced → family → Intel Itanium family ⓘ
linked to: Itanium