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Product comparison · 2 pcs/workstations

Lenovo ThinkStation D20 (4155-79G), DE vs Lenovo ThinkStation S20 + ATI FirePro V5700

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  • 88specifications compared
  • 34differ
  • 54identical
  • 28known for one product only

Key differences

The Lenovo ThinkStation S20 + ATI FirePro V5700 has 4 more processor threads than the Lenovo ThinkStation D20 (4155-79G), DE (8 vs 4). The Lenovo ThinkStation S20 + ATI FirePro V5700 has 0.54 GHz more processor frequency than the Lenovo ThinkStation D20 (4155-79G), DE (2.8 GHz vs 2.26 GHz). The Lenovo ThinkStation S20 + ATI FirePro V5700 has 4 MB more processor cache than the Lenovo ThinkStation D20 (4155-79G), DE (8 MB vs 4 MB). Only the Lenovo ThinkStation D20 (4155-79G), DE has Intel Virtualization Technology for Directed I/O (VT-d). Only the Lenovo ThinkStation S20 + ATI FirePro V5700 has Intel® Hyper Threading Technology (Intel® HT Technology).

  • Processor family
    • Intel® Xeon® 5000 Sequence
    • Intel® Xeon® 3000 Sequence
  • Processor model
    • E5507
    • W3530
  • Processor threads
    • 4
    • 8
  • Processor frequency
    • 2.26 GHz
    • 2.8 GHz
  • Processor cache
    • 4 MB
    • 8 MB
  • Processor series
    • Intel Xeon 5500 Series
    • Intel Xeon 3500 Series
  • Processor codename
    • Nehalem EP
    • Bloomfield
  • Thermal Design Power (TDP)
    • 80 W
    • 130 W

Side by side

Differences highlightedShow differences only
116 specifications
A

Lenovo

ThinkStation D20 (4155-79G), DEView product
B

Lenovo

ThinkStation S20 + ATI FirePro V5700View product
Processor13 differ
Processor familyDiffersIntel® Xeon® 5000 SequenceIntel® Xeon® 3000 Sequence
Processor modelDiffersE5507W3530
Processor threadsDiffers48
Processor boost frequencyKnown for one3.06 GHz
Processor frequencyDiffers2.26 GHz2.8 GHz
Processor cacheDiffers4 MB8 MB
Processor seriesDiffersIntel Xeon 5500 SeriesIntel Xeon 3500 Series
Processor codenameDiffersNehalem EPBloomfield
Thermal Design Power (TDP)Differs80 W130 W
TcaseDiffers76 °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)Known for one21
Processor core voltage (AC)Known for one1.55 V
Maximum internal memory supported by processorDiffers144 GB24 GB
Memory clock speeds supported by processorDiffers800 MHz800,1066 MHz
Memory bandwidth supported by processor (max)Differs19.2 GB/s25.6 GB/s
Memory4 differ
Internal memoryDiffers3 GB6 GB
Maximum internal memoryDiffers96 GB12 GB
Memory layout (slots x size)Differs3 x 1 GB3 x 2 GB
Memory clock speedDiffers1066 MHz1333 MHz
ECCKnown for oneYes
Storage1 differ
HDD interfaceDiffersSATA IISATA
HDD speedKnown for one7200 RPM
Compatible memory cardsKnown for oneCF, MMC, SD, xD
Graphicsidentical
Graphics card manufacturerKnown for oneATI
Performanceidentical
Motherboard form factorKnown for oneATX
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers108
Ethernet LAN (RJ-45) portsDiffers21
PS/2 ports quantityDiffers02
Line-inKnown for oneYes
VGA (D-Sub) ports quantityKnown for one0
Firewire (IEEE 1394) portsKnown for one2
eSATA ports quantityKnown for one1
Expansion slots1 differ
PCI Express x1 slotsKnown for one1
PCI Express x4 slotsKnown for one1
PCI Express x16 slotsDiffers12
PCI slotsKnown for one2
Power2 differ
Power requirementsDiffers100-240V; 50/60Hz100-240V, 50/60Hz
Power supplyDiffers1060 W625 W
Designidentical
Product colourKnown for oneBlack
Softwareidentical
Optional operating system suppliedKnown for oneWindows XP Professional
Compatible operating systemsKnown for oneWindows 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
Processor special features6 differ
CPU configuration (max)Known for one1
Intel Virtualization Technology for Directed I/O (VT-d)DiffersYesNo
Physical Address Extension (PAE)DiffersYes36 bit
Processor ARK IDDiffers3710041313
Processor codeDiffersSLBKCSLBKR
Processor package sizeKnown for one42.5 x 45.0 mm
Supported instruction setsKnown for oneSSE4.2
Intel® Turbo Boost TechnologyDiffersNo1.0
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Weight & dimensions4 differ
WidthDiffers210 mm175 mm
DepthDiffers579 mm483 mm
HeightDiffers485 mm426 mm
WeightDiffers24.9 kg15 kg
Other featuresidentical
Drive baysKnown for one4x 3.5'', 2x 5.25''
Optical driveidentical
CD read speedKnown for one40x
Audioidentical
Audio systemKnown for oneADI 1988 A
Packaging contentidentical
Mouse includedKnown for oneYes
Keyboardidentical
Keyboard typeKnown for onePreferred Pro USB

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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