POWER4 microarchitecture

E826847

The POWER4 microarchitecture is IBM’s high-performance 64-bit RISC processor design that introduced multi-core server CPUs and formed the basis for later PowerPC and POWER family chips.

All labels observed (2)

Label Occurrences
POWER4 microarchitecture canonical 2
POWER4 architecture 1

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf IBM POWER architecture ⓘ
microarchitecture ⓘ
addressSpace 64-bit virtual address space ⓘ
architectureFamily POWER ⓘ
PowerPC ⓘ
architectureType RISC ⓘ
bitWidth 64-bit ⓘ
branchPrediction dynamic branch prediction ⓘ
cacheHierarchy multi-level cache ⓘ
clockFrequencyRange 1.0–1.9 GHz ⓘ
coreCountPerDie 2 ⓘ
designer IBM ⓘ
endianSupport big-endian ⓘ
executionModel out-of-order execution ⓘ
family IBM POWER4 family ⓘ
firstImplementedIn IBM POWER4 ⓘ
floatingPointUnit integrated high-performance FPU ⓘ
floatingPointUnitCount multiple FP execution units ⓘ
influenced POWER5 microarchitecture ⓘ
linked to: POWER5

later IBM PowerPC server processors ⓘ
instructionSetArchitecture PowerPC ISA ⓘ
linked to: PowerPC
integerUnit multiple integer execution units ⓘ
introductionYear 2001 ⓘ
L2Cache on-chip L2 cache ⓘ
L3Cache off-chip L3 cache support ⓘ
marketPosition high-end ⓘ
notableContribution early commercial multi-core server CPU design ⓘ
notableFeature designed for high-performance servers ⓘ
integrated two processor cores on a single die ⓘ
introduced dual-core server processors for IBM POWER line ⓘ
pipelineType superscalar ⓘ
powerManagement server-oriented power and thermal design ⓘ
predecessor POWER3 microarchitecture ⓘ
primaryUse commercial and technical computing workloads ⓘ
datacenter workloads ⓘ
processTechnology 180 nm CMOS ⓘ
simultaneousMultithreading not supported ⓘ
succeededBy POWER5 microarchitecture ⓘ
linked to: POWER5
supports hardware partitioning in server systems ⓘ
symmetric multiprocessing ⓘ
targetMarket enterprise servers ⓘ
high-end UNIX servers ⓘ
usedIn IBM RS/6000 servers ⓘ
linked to: IBM RS/6000 systems

IBM pSeries servers ⓘ
linked to: IBM RS/6000 systems
vendor IBM ⓘ
virtualMemorySupport yes ⓘ

How these facts were elicited

Referenced by (3)

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

PowerPC G5 → basedOn → POWER4 microarchitecture ⓘ
POWER Architecture, first generation → ancestorOf → POWER4 architecture ⓘ
linked to: POWER4 microarchitecture
POWER4 → microarchitecture → POWER4 microarchitecture ⓘ