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Product comparison · 2 cpus

Lenovo Intel Xeon E5-2643 v2 vs Lenovo Intel Xeon E5-4657L v2

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  • 47specifications compared
  • 13differ
  • 34identical
  • 7known for one product only

Key differences

  • Processor family
    • Intel® Xeon® E5 V2 Family
    • Intel® Xeon® E5 Family
  • Processor model
    • E5-2643V2
    • E5-4657LV2
  • Processor base frequency
    • 3.5 GHz
    • 2.4 GHz
  • Processor cores
    • 6
    • 12
  • Processor lithography
    • 28 nm
    • 22 nm
  • Processor threads
    • 12
    • 24
  • Processor boost frequency
    • 3.8 GHz
    • 2.9 GHz
  • Processor cache
    • 25 MB
    • 30 MB

Side by side

Differences highlightedShow differences only
54 specifications
A

Lenovo

Intel Xeon E5-2643 v2View product
B

Lenovo

Intel Xeon E5-4657L v2View product
Processor10 differ
Processor familyDiffersIntel® Xeon® E5 V2 FamilyIntel® Xeon® E5 Family
Processor modelDiffersE5-2643V2E5-4657LV2
Processor base frequencyDiffers3.5 GHz2.4 GHz
Processor coresDiffers612
Processor socketLGA 2011 (Socket R)LGA 2011 (Socket R)
Processor lithographyDiffers28 nm22 nm
Component forServer/workstationServer/workstation
Processor threadsDiffers1224
System bus rate8 GT/s8 GT/s
Processor operating modes64-bit64-bit
Processor boost frequencyDiffers3.8 GHz2.9 GHz
Processor cacheDiffers25 MB30 MB
Processor cache typeL3L3
Thermal Design Power (TDP)Differs130 W115 W
VID Voltage RangeDiffers0.65 - 1.30 V0.65 - 1.3 V
Bus typeQPIQPI
Number of QPI links22
Memory bandwidth supported by processor (max)59.7 GB/s59.7 GB/s
Processor codenameKnown for oneIvy Bridge
Memoryidentical
Maximum internal memory supported by processor768 GB768 GB
Memory types supported by processorDDR3-SDRAMDDR3-SDRAM
Memory clock speeds supported by processor800,1066,1333,1600,1866 MHz800,1066,1333,1600,1866 MHz
Memory channelsQuad-channelQuad-channel
ECCYesYes
Graphicsidentical
On-board graphics cardNoNo
Features2 differ
Execute Disable BitYesYes
Idle StatesYesYes
Thermal Monitoring TechnologiesYesYes
Market segmentServerServer
Maximum number of PCI Express lanes4040
PCI Express slots version3.03.0
PCI Express configurationsKnown for one1x4, 1x8, 1x16
Supported instruction setsKnown for oneAVX
CPU configuration (max)Differs24
Embedded options availableNoNo
ScalabilityDiffers2S4S
Processor special featuresidentical
Enhanced Intel SpeedStep TechnologyYesYes
Intel Trusted Execution TechnologyYesYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Smart CacheKnown for oneYes
Intel® Turbo Boost Technology2.02.0
Intel Demand Based SwitchingYesYes
Intel TSX-NINoNo
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® OS GuardYesYes
Intel® Secure KeyYesYes
Intel Flex Memory AccessKnown for oneNo
Intel® Identity Protection Technology (Intel® IPT)Known for oneNo
Intel® vPro™ Platform EligibilityKnown for oneYes
Operational conditions1 differ
TcaseDiffers78 °C81 °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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