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.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
IBM POWER architecture
ⓘ
microarchitecture ⓘ |
| addressSpace | 64-bit virtual address space ⓘ |
| architectureFamily |
POWER
NERFINISHED
ⓘ
PowerPC NERFINISHED ⓘ |
| architectureType | RISC ⓘ |
| bitWidth | 64-bit ⓘ |
| branchPrediction | dynamic branch prediction ⓘ |
| cacheHierarchy | multi-level cache ⓘ |
| clockFrequencyRange | 1.0–1.9 GHz ⓘ |
| coreCountPerDie | 2 ⓘ |
| designer | IBM NERFINISHED ⓘ |
| endianSupport | big-endian ⓘ |
| executionModel | out-of-order execution ⓘ |
| family | IBM POWER4 family NERFINISHED ⓘ |
| firstImplementedIn | IBM POWER4 NERFINISHED ⓘ |
| floatingPointUnit | integrated high-performance FPU ⓘ |
| floatingPointUnitCount | multiple FP execution units ⓘ |
| influenced |
POWER5 microarchitecture
NERFINISHED
ⓘ
later IBM PowerPC server processors ⓘ |
| instructionSetArchitecture | PowerPC ISA NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| primaryUse |
commercial and technical computing workloads
ⓘ
datacenter workloads ⓘ |
| processTechnology | 180 nm CMOS ⓘ |
| simultaneousMultithreading | not supported ⓘ |
| succeededBy | POWER5 microarchitecture NERFINISHED ⓘ |
| supports |
hardware partitioning in server systems
ⓘ
symmetric multiprocessing ⓘ |
| targetMarket |
enterprise servers
ⓘ
high-end UNIX servers ⓘ |
| usedIn |
IBM RS/6000 servers
NERFINISHED
ⓘ
IBM pSeries servers NERFINISHED ⓘ |
| vendor | IBM NERFINISHED ⓘ |
| virtualMemorySupport | yes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.