Product comparison · 2 cpus

Dell Xeon E5-2665 vs HP Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU

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  • 45specifications compared
  • 14differ
  • 31identical
  • 12known for one product only

Key differences

  • Processor family
    • Xeon E5-2665:Intel® Xeon® E5 Family
    • Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU:Intel® Xeon® E5 V2 Family
  • Processor model
    • Xeon E5-2665:E5-2665
    • Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU:E5-2650V2
  • Processor base frequency
    • Xeon E5-2665:2.4 GHz
    • Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU:2.6 GHz
  • Processor lithography
    • Xeon E5-2665:32 nm
    • Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU:22 nm
  • Processor boost frequency
    • Xeon E5-2665:3.1 GHz
    • Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU:3.4 GHz
  • Thermal Design Power (TDP)
    • Xeon E5-2665:115 W
    • Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU:95 W
  • VID Voltage Range
    • Xeon E5-2665:0.60 - 1.35 V
    • Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU:0.6 - 1.30 V
  • Memory bandwidth supported by processor (max)
    • Xeon E5-2665:51.2 GB/s
    • Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU:59.7 GB/s

Side by side

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Comparison of Xeon E5-2665, Z820 Xeon E5-2650v2 2.6GHz 1866MHz 8 Core 2nd CPU
57 specifications
Processor8 differ
Processor familyDiffersIntel® Xeon® E5 FamilyIntel® Xeon® E5 V2 Family
Processor modelDiffersE5-2665E5-2650V2
Processor base frequencyDiffers2.4 GHz2.6 GHz
Processor cores88
Processor socketLGA 2011 (Socket R)LGA 2011 (Socket R)
Processor lithographyDiffers32 nm22 nm
Component forServer/workstationServer/workstation
Processor threads1616
System bus rate8 GT/s8 GT/s
Processor operating modes64-bit64-bit
Processor boost frequencyDiffers3.1 GHz3.4 GHz
Processor cache20 MB20 MB
Processor cache typeL3L3
L3 cache speedKnown for one2.4 GHzUnknown — not stated by the source
Thermal Design Power (TDP)Differs115 W95 W
VID Voltage RangeDiffers0.60 - 1.35 V0.6 - 1.30 V
SteppingKnown for oneC2Unknown — not stated by the source
Bus typeQPIQPI
CPU multiplier (bus/core ratio)Known for one31Unknown — not stated by the source
Number of QPI links22
Memory bandwidth supported by processor (max)Differs51.2 GB/s59.7 GB/s
Memory2 differ
Maximum internal memory supported by processorDiffers384 GB768 GB
Memory types supported by processorDDR3-SDRAMDDR3-SDRAM
Memory clock speeds supported by processorDiffers800,1066,1333,1600 MHz800,1066,1333,1600,1866 MHz
Memory channelsQuad-channelQuad-channel
ECCYesYes
Features1 differ
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)Known for one2Unknown — not stated by the source
Embedded options availableNoNo
ScalabilityDiffersS2S2S
Physical Address Extension (PAE)Known for oneUnknown — not stated by the sourceYes
Processor special features2 differ
Enhanced Intel SpeedStep TechnologyYesYes
Intel Fast Memory AccessKnown for oneYesUnknown — not stated by the source
Intel Flex Memory AccessDiffersYesNo
Intel Trusted Execution TechnologyYesYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Turbo Boost TechnologyDiffers2.0Yes
Intel Demand Based SwitchingYesYes
Intel Enhanced Halt StateKnown for oneYesUnknown — not stated by the source
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® Identity Protection Technology (Intel® IPT)Known for oneUnknown — not stated by the sourceNo
Intel® Secure KeyKnown for oneUnknown — not stated by the sourceYes
Operational conditions1 differ
TcaseDiffers81.8 °C75 °C
Weight & dimensionsidentical
Processor package sizeKnown for one52.5 mmUnknown — not stated by the source
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)VT-d, VT-xVT-d, VT-x
CompatibilityKnown for oneDELL PowerEdge T620Unknown — not stated by the source
Graphicsidentical
On-board graphics cardKnown for oneUnknown — not stated by the sourceNo

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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