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Product comparison · 2 pcs/workstations

HP Z820 Intel® Xeon® E5 Family E5-2643 vs Lenovo D20 + 41T3526

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  • 95specifications compared
  • 40differ
  • 55identical
  • 27known for one product only

Key differences

  • Processor family
    • Intel® Xeon® E5 Family
    • Intel® Xeon® 5000 Sequence
  • Processor model
    • E5-2643
    • E5620
  • Processor boost frequency
    • 3.5 GHz
    • 2.66 GHz
  • Processor frequency
    • 3.3 GHz
    • 2.4 GHz
  • Processor cache
    • 10 MB
    • 12 MB
  • System bus rate
    • 8 GT/s
    • 5.86 GT/s
  • Processor series
    • Intel Xeon E5-2600
    • Intel Xeon 5600 Series
  • Processor codename
    • Sandy Bridge EP
    • Westmere EP

Side by side

Differences highlightedShow differences only
122 specifications
A

HP

Z820 Intel® Xeon® E5 Family E5-2643

Model Z820

View product
B

Lenovo

D20 + 41T3526View product
Processor18 differ
Processor familyDiffersIntel® Xeon® E5 FamilyIntel® Xeon® 5000 Sequence
Processor modelDiffersE5-2643E5620
Processor boost frequencyDiffers3.5 GHz2.66 GHz
Processor frequencyDiffers3.3 GHz2.4 GHz
Processor cacheDiffers10 MB12 MB
System bus rateDiffers8 GT/s5.86 GT/s
Processor seriesDiffersIntel Xeon E5-2600Intel Xeon 5600 Series
Processor codenameDiffersSandy Bridge EPWestmere EP
Thermal Design Power (TDP)Differs130 W80 W
TcaseDiffers73 °C77.6 °C
Maximum number of PCI Express lanesKnown for one40
PCI Express configurationsKnown for onex4, x8, x16
PCI Express slots versionKnown for one3.0
Number of processors installedDiffers12
Processor socketDiffersLGA 2011 (Socket R)Socket B (LGA 1366)
CPU multiplier (bus/core ratio)Differs3518
SteppingDiffersM1B1
Maximum internal memory supported by processorDiffers750 GB288 GB
Memory types supported by processorDiffersDDR3-SDRAMDDR3 800/1066
Memory clock speeds supported by processorDiffers800,1066,1333,1600 MHz800,1066 MHz
Memory bandwidth supported by processor (max)Differs51.2 GB/s25.6 GB/s
Memory5 differ
Internal memoryDiffers16 GB8 GB
Memory layout (slots x size)Differs4 x 4 GB4 x 16 GB
Memory slotsDiffers16x DIMM12x DIMM
Memory clock speedDiffers1600 MHz1333 MHz
Memory channelsDiffersQuad-channelTriple-channel
Maximum internal memoryKnown for one96 GB
ECCKnown for oneYes
Storage1 differ
Optical drive typeDiffersDVD Super MultiDVD+/-RW
Performance1 differ
Motherboard chipsetDiffersIntel® C602Intel® 5520
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers510
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one4
VGA (D-Sub) ports quantityKnown for one0
PS/2 ports quantityKnown for one2
Parallel ports quantityKnown for one0
eSATA ports quantityKnown for one1
Expansion slotsidentical
Number of 3.5" baysKnown for one4
PCI Express x4 slotsKnown for one2
PCI Express x8 slotsKnown for one1
PCI Express x16 slotsKnown for one3
PCI slotsKnown for one1
Power1 differ
Power supplyDiffers1125 W1060 W
Design1 differ
Chassis typeDiffersMinitowerTower
Number of 5.25" baysKnown for one3
Cable lock slotKnown for oneNo
Country of originKnown for oneChina
Processor special features7 differ
Embedded options availableDiffersNoYes
Graphics & IMC lithographyKnown for one32 nm
Intel Identity Protection Technology versionKnown for one0.00
Intel Secure Key Technology versionKnown for one1.00
Intel TSX-NI versionKnown for one0.00
Intel® Secure KeyKnown for oneYes
Physical Address Extension (PAE)Differs46 bit40 bit
Processor ARK IDDiffers6458747925
Processor package sizeDiffers52.5 x 45.0 mm42.5 X 45 mm
ScalabilityKnown for one2S
Supported instruction setsDiffersAVXSSE4.2
Thermal Monitoring TechnologiesDiffersYesNo
Intel® Turbo Boost TechnologyDiffers2.01.0
Intel® Identity Protection Technology (Intel® IPT)Known for oneNo
Processor codeKnown for oneSLBV4
Audio1 differ
Audio systemDiffersHDHigh Definition Audio
Weight & dimensions4 differ
WidthDiffers203 mm210 mm
DepthDiffers525 mm602 mm
HeightDiffers444 mm485 mm
WeightDiffers19.5 kg27.1 kg
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Gold

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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