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Product comparison · 2 cpus

HP Z620 Xeon E5-2665 8C 2.40GHz 20MB vs HP Z820 Xeon E5-2650 8 Core 2.00GHz 20MB cache 1600MHz 2nd CPU

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  • 48specifications compared
  • 8differ
  • 40identical
  • 1known for one product only

Key differences

The HP Z620 Xeon E5-2665 8C 2.40GHz 20MB has 0.4 GHz more processor base frequency than the HP Z820 Xeon E5-2650 8 Core 2.00GHz 20MB cache 1600MHz 2nd CPU (2.4 GHz vs 2 GHz). The HP Z620 Xeon E5-2665 8C 2.40GHz 20MB has 0.3 GHz more processor boost frequency than the HP Z820 Xeon E5-2650 8 Core 2.00GHz 20MB cache 1600MHz 2nd CPU (3.1 GHz vs 2.8 GHz). The HP Z620 Xeon E5-2665 8C 2.40GHz 20MB has 20 W more thermal Design Power (TDP) than the HP Z820 Xeon E5-2650 8 Core 2.00GHz 20MB cache 1600MHz 2nd CPU (115 W vs 95 W). Processor model: E5-2665 on the HP Z620 Xeon E5-2665 8C 2.40GHz 20MB, E5-2650 on the HP Z820 Xeon E5-2650 8 Core 2.00GHz 20MB cache 1600MHz 2nd CPU. Processor cache type: L3 on the HP Z620 Xeon E5-2665 8C 2.40GHz 20MB, L2 on the HP Z820 Xeon E5-2650 8 Core 2.00GHz 20MB cache 1600MHz 2nd CPU.

  • Processor model
    • E5-2665
    • E5-2650
  • Processor base frequency
    • 2.4 GHz
    • 2 GHz
  • Processor boost frequency
    • 3.1 GHz
    • 2.8 GHz
  • Processor cache type
    • L3
    • L2
  • Thermal Design Power (TDP)
    • 115 W
    • 95 W
  • CPU multiplier (bus/core ratio)
    • 31
    • 28
  • Tcase
    • 81.8 °C
    • 77.4 °C
  • Compatibility
    • HP Z620
    • HP Z820

Side by side

Differences highlightedShow differences only
49 specifications
A

HP

Z620 Xeon E5-2665 8C 2.40GHz 20MBView product
B

HP

Z820 Xeon E5-2650 8 Core 2.00GHz 20MB cache 1600MHz 2nd CPUView product
Processor6 differ
Processor familyIntel® Xeon® E5 FamilyIntel® Xeon® E5 Family
Processor modelDiffersE5-2665E5-2650
Processor base frequencyDiffers2.4 GHz2 GHz
Processor cores88
Processor socketLGA 2011 (Socket R)LGA 2011 (Socket R)
Processor lithography32 nm32 nm
Component forServer/workstationServer/workstation
Processor threads1616
System bus rate8 GT/s8 GT/s
Processor operating modes64-bit64-bit
Processor boost frequencyDiffers3.1 GHz2.8 GHz
Processor cache20 MB20 MB
Processor cache typeDiffersL3L2
Processor front side bus1600 MHz1600 MHz
Thermal Design Power (TDP)Differs115 W95 W
VID Voltage Range0.6 - 1.35 V0.6 - 1.35 V
Bus typeQPIQPI
CPU multiplier (bus/core ratio)Differs3128
Number of QPI links22
Memory bandwidth supported by processor (max)51.2 GB/s51.2 GB/s
Memoryidentical
Maximum internal memory supported by processor750 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
Featuresidentical
Execute Disable BitYesYes
Idle StatesYesYes
Thermal Monitoring TechnologiesYesYes
Market segmentServerServer
Maximum number of PCI Express lanes4040
PCI Express slots versionKnown for one3.0
CPU configuration (max)22
Embedded options availableNoNo
ScalabilityS2SS2S
Processor special featuresidentical
Enhanced Intel SpeedStep TechnologyYesYes
Intel Flex Memory AccessYesYes
Intel Trusted Execution TechnologyYesYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Turbo Boost TechnologyYesYes
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® vPro™ Platform EligibilityYesYes
Operational conditions1 differ
TcaseDiffers81.8 °C77.4 °C
Other features1 differ
Intel® Virtualization Technology (Intel® VT)VT-d, VT-xVT-d, VT-x
CompatibilityDiffersHP Z620HP Z820

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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