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Product comparison · 2 cpus

Dell Xeon E5-2643 vs Dell Xeon E5-2665

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  • 48specifications compared
  • 12differ
  • 36identical
  • 8known for one product only

Key differences

The Dell Xeon E5-2643 has 0.9 GHz more processor base frequency than the Dell Xeon E5-2665 (3.3 GHz vs 2.4 GHz). The Dell Xeon E5-2665 has 4 more processor cores than the Dell Xeon E5-2643 (8 vs 4). The Dell Xeon E5-2665 has 8 more processor threads than the Dell Xeon E5-2643 (16 vs 8). Processor model: E5-2643 on the Dell Xeon E5-2643, E5-2665 on the Dell Xeon E5-2665. Stepping: M1 on the Dell Xeon E5-2643, C2 on the Dell Xeon E5-2665.

  • Processor model
    • E5-2643
    • E5-2665
  • Processor base frequency
    • 3.3 GHz
    • 2.4 GHz
  • Processor cores
    • 4
    • 8
  • Processor threads
    • 8
    • 16
  • Processor boost frequency
    • 3.5 GHz
    • 3.1 GHz
  • Processor cache
    • 10 MB
    • 20 MB
  • Thermal Design Power (TDP)
    • 130 W
    • 115 W
  • Stepping
    • M1
    • C2

Side by side

Differences highlightedShow differences only
56 specifications
A

Dell

Xeon E5-2643View product
B

Dell

Xeon E5-2665View product
Processor9 differ
Processor familyIntel® Xeon® E5 FamilyIntel® Xeon® E5 Family
Processor modelDiffersE5-2643E5-2665
Processor base frequencyDiffers3.3 GHz2.4 GHz
Processor coresDiffers48
Processor socketLGA 2011 (Socket R)LGA 2011 (Socket R)
Processor lithography32 nm32 nm
Component forServer/workstationServer/workstation
Processor threadsDiffers816
System bus rate8 GT/s8 GT/s
Processor operating modes64-bit64-bit
Processor boost frequencyDiffers3.5 GHz3.1 GHz
Processor cacheDiffers10 MB20 MB
Processor cache typeL3L3
L3 cache speedKnown for one2.4 GHz
Thermal Design Power (TDP)Differs130 W115 W
VID Voltage Range0.60 - 1.35 V0.60 - 1.35 V
SteppingDiffersM1C2
Bus typeQPIQPI
CPU multiplier (bus/core ratio)Differs3531
Number of QPI links22
Memory bandwidth supported by processor (max)51.2 GB/s51.2 GB/s
Memory1 differ
Maximum internal memory supported by processor384 GB384 GB
Memory types supported by processorDDR3-SDRAMDDR3-SDRAM
Memory clock speeds supported by processorDiffers1066,1333,1600 MHz800,1066,1333,1600 MHz
Memory channelsQuad-channelQuad-channel
ECCYesYes
Featuresidentical
Execute Disable BitYesYes
Idle StatesYesYes
Thermal Monitoring TechnologiesYesYes
Market segmentServerServer
Maximum number of PCI Express lanes4040
PCI Express slots version3.03.0
Supported instruction setsAVXAVX
CPU configuration (max)22
Embedded options availableNoNo
ScalabilityKnown for oneS2S
Graphics & IMC lithographyKnown for one32 nm
Processor special features1 differ
Enhanced Intel SpeedStep TechnologyYesYes
Intel Fast Memory AccessYesYes
Intel Flex Memory AccessYesYes
Intel Trusted Execution TechnologyKnown for oneYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Turbo Boost TechnologyDiffersYes2.0
Intel Demand Based SwitchingYesYes
Intel Enhanced Halt StateKnown for oneYes
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® vPro™ Platform EligibilityYesYes
Intel QuickPath InterconnectKnown for oneYes
Operational conditions1 differ
TcaseDiffers73 °C81.8 °C
Weight & dimensionsidentical
Processor package size52.5 mm52.5 mm
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)VT-d, VT-xVT-d, VT-x
CompatibilityKnown for oneDELL PowerEdge T620
Graphicsidentical
On-board graphics cardKnown for oneNo

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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