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Product comparison · 2 pcs/workstations

Lenovo D20 + 2GB DDR3 vs Lenovo Edge E71

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  • 88specifications compared
  • 51differ
  • 37identical
  • 56known for one product only

Key differences

  • Processor family
    • Intel® Xeon® 5000 Sequence
    • Intel® Pentium®
  • Processor model
    • E5606
    • G840
  • Processor cores
    • 4
    • 2
  • Processor threads
    • 4
    • 2
  • Processor frequency
    • 2.13 GHz
    • 2.8 GHz
  • Processor cache
    • 8 MB
    • 3 MB
  • Bus type
    • QPI
    • DMI
  • System bus rate
    • 4.8 GT/s
    • 5 GT/s

Side by side

Differences highlightedShow differences only
144 specifications
A

Lenovo

D20 + 2GB DDR3View product
B

Lenovo

Edge E71View product
Processor16 differ
Processor familyDiffersIntel® Xeon® 5000 SequenceIntel® Pentium®
Processor modelDiffersE5606G840
Processor coresDiffers42
Processor threadsDiffers42
Processor frequencyDiffers2.13 GHz2.8 GHz
Processor cacheDiffers8 MB3 MB
Bus typeDiffersQPIDMI
FSB ParityKnown for oneNo
System bus rateDiffers4.8 GT/s5 GT/s
Processor seriesKnown for oneIntel Xeon 5600 Series
Processor codenameDiffersWestmere EPSandy Bridge
Thermal Design Power (TDP)Differs80 W65 W
Number of QPI linksKnown for one2
Processor socketDiffersSocket B (LGA 1366)LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)Differs1628
Maximum number of SMP processorsKnown for one1
SteppingDiffersB1Q0
Maximum internal memory supported by processorDiffers288 GB32 GB
Memory clock speeds supported by processorDiffers800,1066 MHz1066,1333 MHz
Memory bandwidth supported by processor (max)Differs25.6 GB/s21 GB/s
ECC supported by processorKnown for oneYes
TcaseKnown for one69.1 °C
PCI Express slots versionKnown for one2.0
Memory4 differ
Internal memoryDiffers4 GB2 GB
Maximum internal memoryDiffers98304 MB8 GB
Memory layout (slots x size)Differs2 x 4 GB1 x 2 GB
Memory slotsKnown for one12x DIMM
Memory clock speedKnown for one1333 MHz
Memory channelsDiffersTriple-channelDual-channel
Storage2 differ
HDD capacityDiffers500 GB320 GB
Card reader integratedDiffersYesNo
Total storage capacityKnown for one320 GB
Graphicsidentical
Graphics cardKnown for oneNo
On-board graphics cardKnown for oneYes
On-board graphics card familyKnown for oneIntel® HD Graphics
On-board graphics card modelKnown for oneIntel® HD Graphics
Number of displays supported (on-board graphics)Known for one2
On-board graphics card base frequencyKnown for one850 MHz
On-board graphics card dynamic frequency (max)Known for one1100 MHz
Graphics card familyKnown for oneIntel
Performance2 differ
Product typeDiffersWorkstationPC
Motherboard chipsetDiffersIntel® 5520Intel® H61
Audio output channelsKnown for one7.1 channels
Compatible processor seriesKnown for oneIntel® Pentium® Dual-Core
Network1 differ
Networking featuresDiffersGigabit Ethernet (10/100/1000)Gigabit Ethernet
Ethernet LANKnown for oneYes
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Cabling technologyKnown for one10/100/1000Base-T(X)
Wi-FiKnown for oneNo
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers86
Ethernet LAN (RJ-45) portsDiffers21
VGA (D-Sub) ports quantityDiffers01
Firewire (IEEE 1394) portsDiffers10
eSATA ports quantityKnown for one1
Serial ports quantityKnown for one1
Parallel ports quantityKnown for one0
HDMI ports quantityKnown for one0
Line-outKnown for oneYes
DVI portKnown for oneYes
Expansion slots2 differ
Number of 3.5" baysDiffers61
PCI Express x4 slotsKnown for one1
PCI Express x16 slotsDiffers31
PCI slotsKnown for one2
Number of slotsKnown for one3
Power1 differ
Power supply typeKnown for oneAC/DC
Power supplyDiffers1060 W180 W
Power supply input voltageKnown for one100 - 240 V
Power supply input frequencyKnown for one50 - 60 Hz
Design2 differ
Chassis typeDiffersTowerSFF
Number of 5.25" baysDiffers31
Rack mountingKnown for oneNo
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneKensington
External drive baysKnown for one1x 3.5"
Internal drive baysKnown for one1x 5.25"
Softwareidentical
Optional operating system suppliedKnown for oneWindows Vista Business
Processor special features13 differ
CPU configuration (max)Differs21
Intel Clear Video TechnologyKnown for oneNo
Intel Demand Based SwitchingKnown for oneYes
Intel Dual Display Capable TechnologyDiffersNoYes
Intel FDI TechnologyDiffersNoYes
Intel Fast Memory AccessDiffersNoYes
Intel Flex Memory AccessDiffersNoYes
Intel Rapid Storage TechnologyKnown for oneNo
Intel Trusted Execution TechnologyDiffersYesNo
Intel Virtualization Technology for Directed I/O (VT-d)DiffersYesNo
Intel® AES New Instructions (Intel® AES-NI)DiffersYesNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for oneNo
Physical Address Extension (PAE)Known for one40 bit
Processor ARK IDDiffers5258353490
Processor codeDiffersSLC2NSR05P
Processor package sizeDiffers42.5 X 45 mm37.5 x 37.5 mm
Supported instruction setsDiffersSSE4.2SSE4.1, SSE4.2
Thermal Monitoring TechnologiesDiffersNoYes
Intel® My WiFi Technology (Intel® MWT)Known for oneNo
Intel® Anti-Theft Technology (Intel® AT)Known for oneNo
Conflict-Free processorKnown for oneNo
Audioidentical
Audio systemKnown for oneHD
Built-in microphoneKnown for oneYes
Weight & dimensions4 differ
WidthDiffers210 mm333 mm
DepthDiffers602 mm368 mm
HeightDiffers434 mm97 mm
WeightDiffers25 kg6 kg
Certificatesidentical
CertificationKnown for oneEPEAT Gold Energy Star 5.0 RoHSGREENGUARD
Optical driveidentical
BD interface typeKnown for oneSATA
Packaging contentidentical
Mouse includedKnown for oneYes
Keyboard includedKnown for oneYes

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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