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Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M55 8811 vs Lenovo ThinkStation S20, ES

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  • 90specifications compared
  • 46differ
  • 44identical
  • 47known for one product only

Key differences

The Lenovo ThinkStation S20, ES has 2 more processor cores than the Lenovo ThinkCentre M55 8811 (4 vs 2). The Lenovo ThinkStation S20, ES has 6 more processor threads than the Lenovo ThinkCentre M55 8811 (8 vs 2). The Lenovo ThinkStation S20, ES has 0.94 GHz more processor frequency than the Lenovo ThinkCentre M55 8811 (2.8 GHz vs 1.86 GHz). Only the Lenovo ThinkStation S20, ES has ECC supported by processor. Only the Lenovo ThinkStation S20, ES has card reader integrated.

  • Processor family
    • Intel® Core™2 Duo
    • Intel® Xeon® 3000 Sequence
  • Processor model
    • E6300
    • W3530
  • Processor cores
    • 2
    • 4
  • Processor threads
    • 2
    • 8
  • Processor frequency
    • 1.86 GHz
    • 2.8 GHz
  • Processor cache
    • 2 MB
    • 8 MB
  • Processor cache type
    • L2
    • Smart Cache
  • Bus type
    • FSB
    • QPI

Side by side

Differences highlightedShow differences only
137 specifications
A

Lenovo

ThinkCentre M55 8811View product
B

Lenovo

ThinkStation S20, ESView product
Processor18 differ
Processor familyDiffersIntel® Core™2 DuoIntel® Xeon® 3000 Sequence
Processor modelDiffersE6300W3530
Processor coresDiffers24
Processor threadsDiffers28
Processor frequencyDiffers1.86 GHz2.8 GHz
Processor cacheDiffers2 MB8 MB
Processor cache typeDiffersL2Smart Cache
Processor front side busKnown for one1066 MHz
Bus typeDiffersFSBQPI
Processor lithographyDiffers65 nm45 nm
Processor codenameDiffersConroeBloomfield
Thermal Design Power (TDP)Differs65 W130 W
TcaseDiffers61.4 °C67.9 °C
Processor socketDiffersLGA 775 (Socket T)Socket B (LGA 1366)
Number of Processing Die TransistorsDiffers167 M731 M
Processing Die sizeDiffers111 mm²263 mm²
CPU multiplier (bus/core ratio)Differs721
PlatformKnown for onePC
SteppingDiffersR0D0
ECC supported by processorDiffersNoYes
Processor boost frequencyKnown for one3.06 GHz
System bus rateKnown for one4.8 GT/s
Processor seriesKnown for oneIntel Xeon 3500 Series
Number of QPI linksKnown for one1
Maximum number of SMP processorsKnown for one1
Processor core voltage (AC)Known for one1.55 V
Maximum internal memory supported by processorKnown for one24 GB
Memory types supported by processorKnown for oneDDR3-SDRAM
Memory clock speeds supported by processorKnown for one800,1066 MHz
Memory bandwidth supported by processor (max)Known for one25.6 GB/s
Memory4 differ
Internal memoryDiffers1 GB4 GB
Maximum internal memoryDiffers8 GB12 GB
Internal memory typeDiffersDDR2-SDRAMDDR3-SDRAM
Memory layout (slots x size)Known for one1 x 1 GB
Memory clock speedDiffers667 MHz1333 MHz
ECCKnown for oneYes
Memory channelsKnown for oneTriple-channel
Storage1 differ
Total storage capacityKnown for one160 GB
Card reader integratedDiffersNoYes
Floppy drive installedKnown for oneNo
Number of HDDs installedKnown for one1
HDD capacityKnown for one500 GB
Compatible memory cardsKnown for oneCF, Memory Stick (MS), MMC, SD, SDHC, xD
Graphicsidentical
On-board graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneIntel® GMA 3000
Graphics card familyKnown for oneIntel
Performance1 differ
Product typeDiffersPCWorkstation
Motherboard chipsetKnown for oneIntel® Q965 Express
Motherboard form factorKnown for oneATX
Network1 differ
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
Networking featuresDiffersGigabit EthernetGigabit Ethernet (10/100/1000)
Ports & interfaces2 differ
HDMI ports quantityKnown for one0
Line-outKnown for oneYes
Line-inKnown for oneYes
Microphone inDiffersYesNo
DVI portKnown for oneNo
Firewire (IEEE 1394) portsKnown for one0
Parallel ports quantityDiffers10
eSATA ports quantityKnown for one1
Expansion slots2 differ
PCI Express x16 slotsDiffers12
PCI slotsDiffers21
PCI Express x4 slotsKnown for one1
Power2 differ
Power supply typeKnown for oneAC
Power requirementsDiffers120 - 230 V100 - 240V
Power supplyDiffers310 W625 W
Design2 differ
External drive baysDiffers2 x 5.25", 1 x 3.5"1 x 3.5", 2 x 5.25"
Internal drive baysDiffers2 x 3.5"3 x 3.5"
Rack mountingKnown for oneYes
Software1 differ
Operating system installedDiffersWindows XP ProfessionalWindows 7 Professional
Drivers includedKnown for oneYes
Processor special features8 differ
Intel Demand Based SwitchingDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)DiffersNoYes
Processor ARK IDDiffers2724841313
Processor codeDiffersSLGW2SLBKR
Processor package sizeDiffers37.5 x 37.5 mm42.5 x 45.0 mm
Thermal Monitoring TechnologiesDiffersYesNo
Intel® Turbo Boost TechnologyDiffersNo1.0
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Intel® Smart CacheKnown for oneYes
Physical Address Extension (PAE)Known for one36 bit
Supported instruction setsKnown for oneSSE4.2
Audioidentical
Audio systemKnown for oneHigh Definition Audio
Weight & dimensions4 differ
WidthDiffers178 mm175 mm
DepthDiffers450 mm483 mm
HeightDiffers432 mm426 mm
WeightDiffers12.5 kg15 kg
Packaging contentidentical
Remote control includedKnown for oneNo
Certificatesidentical
Compliance industry standardsKnown for oneIEEE802.3, IEEE802.3u, IEEE802.3ab
Other featuresidentical
TV tuner integratedKnown for oneNo
Intel segment taggingKnown for oneEnterprise, Professional

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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