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Product comparison · 2 cpus

NEC Intel Xeon E5-2620v2 6C 2.1GHz vs NEC Intel Xeon E5-2643

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  • 41specifications compared
  • 15differ
  • 26identical
  • 10known for one product only

Key differences

  • Processor family
    • Intel® Xeon® E5 V2 Family
    • Intel® Xeon® E5 Family
  • Processor model
    • E5-2620V2
    • E5-2643
  • Processor base frequency
    • 2.1 GHz
    • 3.3 GHz
  • Processor cores
    • 6
    • 4
  • Processor lithography
    • 22 nm
    • 32 nm
  • Processor threads
    • 12
    • 8
  • System bus rate
    • 7.2 GT/s
    • 8 GT/s
  • Processor boost frequency
    • 2.6 GHz
    • 3.5 GHz

Side by side

Differences highlightedShow differences only
51 specifications
A

NEC

Intel Xeon E5-2620v2 6C 2.1GHzView product
B

NEC

Intel Xeon E5-2643View product
Processor10 differ
Processor familyDiffersIntel® Xeon® E5 V2 FamilyIntel® Xeon® E5 Family
Processor modelDiffersE5-2620V2E5-2643
Processor base frequencyDiffers2.1 GHz3.3 GHz
Processor coresDiffers64
Processor socketLGA 2011 (Socket R)LGA 2011 (Socket R)
Processor lithographyDiffers22 nm32 nm
Component forServer/workstationServer/workstation
Processor threadsDiffers128
System bus rateDiffers7.2 GT/s8 GT/s
Processor operating modes64-bit64-bit
Processor boost frequencyDiffers2.6 GHz3.5 GHz
Processor cacheKnown for one15 MB
Processor cache typeKnown for oneL3
Thermal Design Power (TDP)Differs80 W130 W
VID Voltage RangeDiffers0.6 - 1.30 V0.6 - 1.35 V
Bus typeQPIQPI
Number of QPI links22
Memory bandwidth supported by processor (max)51.2 GB/s51.2 GB/s
SteppingKnown for oneM1
Memory1 differ
Maximum internal memory supported by processorDiffers768 GB750 GB
Memory types supported by processorDDR3-SDRAMDDR3-SDRAM
Memory clock speeds supported by processor800,1066,1333,1600 MHz800,1066,1333,1600 MHz
Memory channelsQuad-channelQuad-channel
ECCYesYes
Graphicsidentical
On-board graphics cardNoNo
Features1 differ
Execute Disable BitYesYes
Idle StatesYesYes
Thermal Monitoring TechnologiesYesYes
Market segmentServerServer
Maximum number of PCI Express lanesKnown for one40
PCI Express slots version3.03.0
Embedded options availableKnown for oneYes
Physical Address Extension (PAE)Known for oneYes
ScalabilityDiffers2SS2S
Supported instruction setsKnown for oneAVX
CPU configuration (max)Known for one2
Processor special features2 differ
Enhanced Intel SpeedStep TechnologyYesYes
Intel Flex Memory AccessDiffersNoYes
Intel Trusted Execution TechnologyYesYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Identity Protection Technology (Intel® IPT)Known for oneNo
Intel® Turbo Boost TechnologyDiffersYes2.0
Intel Demand Based SwitchingYesYes
Intel VT-x with Extended Page Tables (EPT)YesYes
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)YesYes
Intel® Secure KeyKnown for oneYes
Intel® vPro™ Platform EligibilityYesYes
Operational conditions1 differ
TcaseDiffers71 °C73 °C
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)VT-d, VT-xVT-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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