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Product comparison · 2 pcs/workstations

Lenovo ThinkStation D20 + 24" Monitor vs Lenovo ThinkStation S20, BE

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  • 101specifications compared
  • 43differ
  • 58identical
  • 33known for one product only

Key differences

The Lenovo ThinkStation S20, BE has 2 more processor cores than the Lenovo ThinkStation D20 + 24" Monitor (6 vs 4). The Lenovo ThinkStation S20, BE has 4 more processor threads than the Lenovo ThinkStation D20 + 24" Monitor (12 vs 8). The Lenovo ThinkStation S20, BE has 1.07 GHz more processor boost frequency than the Lenovo ThinkStation D20 + 24" Monitor (3.6 GHz vs 2.53 GHz). Only the Lenovo ThinkStation D20 + 24" Monitor has display included. Only the Lenovo ThinkStation S20, BE has Intel Trusted Execution Technology.

  • Processor family
    • Intel® Xeon® 5000 Sequence
    • Intel® Xeon® 3000 Sequence
  • Processor model
    • E5520
    • W3680
  • Processor cores
    • 4
    • 6
  • Processor threads
    • 8
    • 12
  • Processor boost frequency
    • 2.53 GHz
    • 3.6 GHz
  • Processor frequency
    • 2.26 GHz
    • 3.33 GHz
  • Processor cache
    • 8 MB
    • 12 MB
  • System bus rate
    • 5.86 GT/s
    • 6.4 GT/s

Side by side

Differences highlightedShow differences only
134 specifications
A

Lenovo

ThinkStation D20 + 24" MonitorView product
B

Lenovo

ThinkStation S20, BEView product
Processor19 differ
Processor familyDiffersIntel® Xeon® 5000 SequenceIntel® Xeon® 3000 Sequence
Processor modelDiffersE5520W3680
Processor coresDiffers46
Processor threadsDiffers812
Processor boost frequencyDiffers2.53 GHz3.6 GHz
Processor frequencyDiffers2.26 GHz3.33 GHz
Processor cacheDiffers8 MB12 MB
System bus rateDiffers5.86 GT/s6.4 GT/s
Processor lithographyDiffers45 nm32 nm
Processor seriesDiffersIntel Xeon 5500 SeriesIntel Xeon 3600 Series
Processor codenameDiffersNehalem EPWestmere EP
Processor system typeKnown for oneDP
Thermal Design Power (TDP)Differs80 W130 W
TcaseDiffers72 °C67.9 °C
Number of QPI linksDiffers21
Number of Processing Die TransistorsKnown for one731 M
Processing Die sizeKnown for one263 mm²
CPU multiplier (bus/core ratio)Differs1725
SteppingDiffersD0B1
Maximum internal memory supported by processorDiffers144 GB24 GB
Memory clock speeds supported by processorDiffers800,1066 MHz800,1066,1333 MHz
Memory bandwidth supported by processor (max)Differs25.6 GB/s32 GB/s
Memory4 differ
Internal memoryDiffers4 GB6 GB
Maximum internal memoryDiffers192 GB12 GB
Memory layout (slots x size)Differs2 x 2 GB3 x 2 GB
Memory slotsKnown for one12x DIMM
Memory clock speedDiffers1066 MHz1333 MHz
Storage3 differ
Optical drive typeDiffersDVD-RWDVD-ROM
HDD interfaceDiffersSATA, SATA IISATA
RAID levelsDiffers0, 1, 5, 100, 1, 5
HDD number of platesKnown for one3
Storage drive heightKnown for one8.89 cm
Graphicsidentical
Graphics cardKnown for oneQuadro FX 580
Graphics card manufacturerKnown for oneNVIDIA
Performance1 differ
Motherboard chipsetDiffersIntel® 5520Intel® X58 Express
Networkidentical
Networking topologyKnown for one10,100,1000
Ports & interfaces1 differ
Ethernet LAN (RJ-45) portsDiffers21
Line-inKnown for oneYes
Firewire (IEEE 1394) portsKnown for one2
I/O portsKnown for one5x SATA 5x SAS
VGA (D-Sub) ports quantityKnown for one0
PS/2 ports quantityKnown for one0
Parallel ports quantityKnown for one0
Expansion slotsidentical
PCI slotsKnown for one2
PCI Express x1 slotsKnown for one1
Power2 differ
Power requirementsDiffers100-127/200-240V, 50/60Hz; 12V/6A100 - 240V
Power supplyDiffers1060 W625 W
Power supply input voltageKnown for one100 - 127, 200 - 240 V
Design2 differ
External drive baysDiffers11 x 3.5", 2 x 5.25"
Internal drive baysDiffers53 x 3.5"
Rack mountingKnown for oneYes
Display1 differ
Display includedDiffersYesNo
Display diagonalKnown for one61 cm (24")
Processor special features6 differ
CPU configuration (max)Differs21
Intel Trusted Execution TechnologyDiffersNoYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersYesNo
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Smart CacheKnown for oneYes
Physical Address Extension (PAE)Differs40 bit36 bit
Processor ARK IDDiffers4020047917
Processor codeKnown for oneSLBFD
Supported instruction setsKnown for oneSSE4.2
Audioidentical
Audio systemKnown for oneHD
Operational conditionsidentical
Operating temperature (T-T)Known for one10 - 35 °C
Operating relative humidity (H-H)Known for one10 - 80%
Ergonomicsidentical
Acoustic pressure emissionsKnown for one5 dB
Weight & dimensions4 differ
WidthDiffers434 mm426 mm
DepthDiffers210 mm175 mm
HeightDiffers602 mm483 mm
WeightDiffers25 kg15 kg
Packaging contentidentical
Mouse includedKnown for oneNo
Certificatesidentical
CertificationKnown for oneEnergyStar, EPEAT Gold, GREENGUARD, RoHS, 80+ Bronze
Other featuresidentical
Drive baysKnown for one3.5", 5.25"
Softwareidentical
Operating system installedKnown for oneWindows 7 Professional
Compatible operating systemsKnown for oneWindows XP x64 Linux 5
Drivers 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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