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Product comparison · 2 cpus

HP 124779-B21 processor vs NEC Intel Xeon E5-2643

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  • 10specifications compared
  • 8differ
  • 2identical
  • 37known for one product only

Key differences

  • Processor family
    • Intel® Pentium® III
    • Intel® Xeon® E5 Family
  • Processor base frequency
    • 0.55 GHz
    • 3.3 GHz
  • Processor cores
    • 1
    • 4
  • Processor socket
    • SECC2242
    • LGA 2011 (Socket R)
  • Processor lithography
    • 250 nm
    • 32 nm
  • Processor operating modes
    • 32-bit
    • 64-bit
  • Thermal Design Power (TDP)
    • 30.8 W
    • 130 W
  • Market segment
    • Desktop
    • Server

Side by side

Differences highlightedShow differences only
47 specifications
A

HP

124779-B21 processor

Model 124779-B21

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B

NEC

Intel Xeon E5-2643View product
Processor7 differ
Processor familyDiffersIntel® Pentium® IIIIntel® Xeon® E5 Family
Processor modelKnown for oneE5-2643
Processor base frequencyDiffers0.55 GHz3.3 GHz
Processor coresDiffers14
Processor socketDiffersSECC2242LGA 2011 (Socket R)
Processor lithographyDiffers250 nm32 nm
Processor threadsKnown for one8
System bus rateKnown for one8 GT/s
Processor operating modesDiffers32-bit64-bit
Processor boost frequencyKnown for one3.5 GHz
Thermal Design Power (TDP)Differs30.8 W130 W
VID Voltage RangeKnown for one0.6 - 1.35 V
SteppingKnown for oneM1
Bus typeKnown for oneQPI
Number of QPI linksKnown for one2
Memory bandwidth supported by processor (max)Known for one51.2 GB/s
Processor cacheKnown for one0.512 MB
Processor cache typeKnown for oneL2
Processor front side busKnown for one100 MHz
Memoryidentical
Maximum internal memory supported by processorKnown for one750 GB
Memory types supported by processorKnown for oneDDR3-SDRAM
Memory clock speeds supported by processorKnown for one800,1066,1333,1600 MHz
Memory channelsKnown for oneQuad-channel
ECCKnown for oneYes
Features1 differ
Execute Disable BitKnown for oneYes
Idle StatesKnown for oneYes
Thermal Monitoring TechnologiesKnown for oneYes
Market segmentDiffersDesktopServer
PCI Express slots versionKnown for one3.0
Supported instruction setsKnown for oneAVX
CPU configuration (max)Known for one2
ScalabilityKnown for oneS2S
Processor special featuresidentical
Enhanced Intel SpeedStep TechnologyKnown for oneYes
Intel Flex Memory AccessKnown for oneYes
Intel Trusted Execution TechnologyKnown for oneYes
Intel® AES New Instructions (Intel® AES-NI)Known for oneYes
Intel® Hyper Threading Technology (Intel® HT Technology)Known for oneYes
Intel® Turbo Boost TechnologyKnown for one2.0
Intel Demand Based SwitchingKnown for oneYes
Intel VT-x with Extended Page Tables (EPT)Known for oneYes
Intel Virtualization Technology (VT-x)Known for oneYes
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneYes
Intel® vPro™ Platform EligibilityKnown for oneYes
Operational conditionsidentical
TcaseKnown for one73 °C
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)Known for oneVT-d, VT-x

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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