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Product comparison · 2 pcs/workstations

Lenovo D20 (4155-22G) vs Lenovo Thinkstation S20 + NVIDIA Quadro FX 580

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  • 102specifications compared
  • 33differ
  • 69identical
  • 23known for one product only

Key differences

  • Processor model
    • E5520
    • E5502
  • Processor cores
    • 4
    • 2
  • Processor threads
    • 8
    • 2
  • Processor frequency
    • 2.26 GHz
    • 1.86 GHz
  • Processor cache
    • 8 MB
    • 4 MB
  • System bus rate
    • 5.86 GT/s
    • 4.8 GT/s
  • Tcase
    • 72 °C
    • 76 °C
  • CPU multiplier (bus/core ratio)
    • 17
    • 14

Side by side

Differences highlightedShow differences only
125 specifications
A

Lenovo

D20 (4155-22G)View product
B

Lenovo

Thinkstation S20 + NVIDIA Quadro FX 580View product
Processor10 differ
Processor modelDiffersE5520E5502
Processor coresDiffers42
Processor threadsDiffers82
Processor boost frequencyKnown for one2.53 GHz
Processor frequencyDiffers2.26 GHz1.86 GHz
Processor cacheDiffers8 MB4 MB
System bus rateDiffers5.86 GT/s4.8 GT/s
TcaseDiffers72 °C76 °C
Number of Processing Die TransistorsKnown for one731 M
Processing Die sizeKnown for one263 mm²
CPU multiplier (bus/core ratio)Differs1714
Memory clock speeds supported by processorDiffers800,1066 MHz800 MHz
Memory bandwidth supported by processor (max)Differs25.6 GB/s19.2 GB/s
Memory3 differ
Maximum internal memoryDiffers96 GB12 GB
Memory layout (slots x size)Differs2 x 2 GB2 x 4 GB
Memory clock speedDiffers1066 MHz1333 MHz
ECCKnown for oneYes
Storage4 differ
HDD capacityDiffers147 GB250 GB
HDD interfaceDiffersSerial Attached SCSI (SAS)SATA
HDD speedDiffers15000 RPM7200 RPM
Card reader integratedDiffersYesNo
RAID supportKnown for oneYes
RAID levelsKnown for one0, 1, 5, 10
Performanceidentical
Motherboard form factorKnown for oneATX
Optical driveidentical
CD read speedKnown for one40x
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers108
Ethernet LAN (RJ-45) portsDiffers21
Line-inKnown for oneYes
Firewire (IEEE 1394) portsKnown for one2
eSATA ports quantityKnown for one1
DisplayPorts quantityKnown for one1
DVI-I ports quantityKnown for one1
Expansion slots1 differ
PCI Express x1 slotsDiffers21
PCI slotsKnown for one1
Power2 differ
Power requirementsDiffers100-240V, 50/60Hz100 - 127 V, 200 - 240 V
Power supplyDiffers1060 W625 W
Power supply typeKnown for oneAC
Designidentical
External drive baysKnown for one1x 3.5", 3x 5.25"
Internal drive baysKnown for one5x 3.5"
Software1 differ
Compatible operating systemsDiffersWindows XP Pro SP1a/SP2a 32/64-bit; Red Hat Enterprise Linux 5.0; Windows Vista 32/64-bit; Windows Vista Enterprise 32/64-bit; Windows Vista Ultimate 32/64-bit.Windows Vista, XP Pro 32-bit, XP Pro 64-bit Red Hat Enterprise Linux 5.2 64-bit
Operating system installedKnown for oneWindows XP Professional
Trial softwareKnown for oneMicrosoft Office 2010
Processor special features5 differ
Physical Address Extension (PAE)Differs40 bitYes
Processor ARK IDDiffers4020037092
Processor codeDiffersSLBFDSLBEZ
Intel® Turbo Boost TechnologyDiffers1.0No
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersYesNo
Audio1 differ
Audio systemDiffersADI 1988 AHD 7.1
Ergonomicsidentical
Acoustic pressure emissionsKnown for one24 dB
Weight & dimensions4 differ
WidthDiffers210 mm175 mm
DepthDiffers602 mm483 mm
HeightDiffers434 mm426 mm
WeightDiffers24.9 kg15 kg
Certificatesidentical
CertificationKnown for oneEPEAT, Energy Star 5.0, RoHS, GREENGUARD
Graphicsidentical
Graphics cardKnown for oneQuadro FX 580
Graphics card manufacturerKnown for oneNVIDIA

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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