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Product comparison · 2 pcs/workstations

Acer Aspire E571 Intel® Core™2 Duo E6400 vs Lenovo ThinkCentre M55 Intel® Pentium® D 915

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  • 76specifications compared
  • 27differ
  • 49identical
  • 39known for one product only

Key differences

  • Processor family
    • Intel® Core™2 Duo
    • Intel® Pentium® D
  • Processor model
    • E6400
    • 915
  • Processor frequency
    • 2.13 GHz
    • 2.8 GHz
  • Processor cache
    • 2 MB
    • 4 MB
  • Processor front side bus
    • 1066 MHz
    • 800 MHz
  • Processor codename
    • Conroe
    • Presler
  • Thermal Design Power (TDP)
    • 65 W
    • 95 W
  • Tcase
    • 61.4 °C
    • 63.4 °C

Side by side

Differences highlightedShow differences only
115 specifications
A

Acer

Aspire E571 Intel® Core™2 Duo E6400

Model E571

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B

Lenovo

ThinkCentre M55 Intel® Pentium® D 915

Model M55

View product
Processor12 differ
Processor familyDiffersIntel® Core™2 DuoIntel® Pentium® D
Processor modelDiffersE6400915
Processor frequencyDiffers2.13 GHz2.8 GHz
Processor cacheDiffers2 MB4 MB
Processor front side busDiffers1066 MHz800 MHz
Processor seriesDiffersIntel Core 2 Duo E6000 SeriesIntel Pentium D 900 Series
Processor codenameDiffersConroePresler
Thermal Design Power (TDP)Differs65 W95 W
TcaseDiffers61.4 °C63.4 °C
Number of processors installedKnown for one1
Number of Processing Die TransistorsDiffers167 M376 M
Processing Die sizeDiffers111 mm²162 mm²
CPU multiplier (bus/core ratio)Differs814
Memory1 differ
Internal memoryDiffers2 GB1 GB
Maximum internal memoryKnown for one4 GB
Memory slotsKnown for one2x DIMM
Storage2 differ
Total storage capacityDiffers500 GB160 GB
Optical drive typeDiffersDVD±RWDVD-ROM
Storage mediaKnown for oneHDD
Number of HDDs installedKnown for one1
HDD capacityKnown for one500 GB
Card reader integratedKnown for oneNo
Compatible memory cardsKnown for oneMMC, MS Duo, MS Pro, MS Pro Duo, SD, xD
Graphics1 differ
On-board graphics cardKnown for oneNo
Discrete graphics card modelDiffersNVIDIA® GeForce® 8800 GTSIntel® GMA 3000
On-board graphics card modelKnown for oneNot available
Performanceidentical
Audio output channelsKnown for one7.1 channels
Motherboard chipsetKnown for oneIntel® Q963 Express
Optical driveidentical
Optical drives quantityKnown for one1
CD read speedKnown for one24x
CD write speedKnown for one24x
CD rewrite speedKnown for one24x
DVD read speedKnown for one8x
Networkidentical
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 featuresKnown for oneEthernet/Fast Ethernet/Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers68
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one0
HDMI ports quantityKnown for one0
DVI portKnown for oneYes
PS/2 ports quantityKnown for one2
Firewire (IEEE 1394) portsKnown for one1
S/PDIF out portKnown for oneYes
Serial ports quantityKnown for one1
Line-outKnown for oneYes
Designidentical
Chassis typeKnown for oneMini Tower
Product colourKnown for oneSilver
Cooling typeKnown for oneActive
Software2 differ
Operating system installedDiffersWindows Vista Home PremiumWindows XP Professional
Bundled softwareDiffersSymantec Norton AntiVirus 2006, Adobe Acrobat Reader 7.0, Cyberlink Power DVD 6, NTI CD-Maker Gold, Self Burn Recovery, Acer Empowering Framework, Acer eRecovery Management, Acer eDataSecurity Management, Acer ePerformance Management, Acer e-Mode, Acer e-ConsoleAdobe Acrobat Reader, Diskeeper 9.0 Home Edition, Google Desktop, Google Toolbar, Microsoft Office Hybrid Pro image 2007, Picasa, ThinkVantage Client Security Solution, ThinkVantage Productivity Center, ThinkVantage Rescue & Recovery, ThinkVantage System Update, Sun JRE, Norton Internet Security (OE
Processor special features4 differ
Embedded options availableDiffersYesNo
Intel Virtualization Technology (VT-x)DiffersYesNo
Processor ARK IDDiffers2724927515
Thermal Monitoring TechnologiesDiffersYesNo
Physical Address Extension (PAE)Known for one32 bit
Audio1 differ
Audio systemDiffersHDADI 1983 HD
Weight & dimensions3 differ
WidthDiffers180 mm276 mm
DepthDiffers420 mm270 mm
HeightDiffers360 mm89 mm
WeightKnown for one6.4 kg
Packaging contentidentical
Mouse includedKnown for oneYes
Keyboard includedKnown for oneYes
Poweridentical
Power supplyKnown for one225 W
Other featuresidentical
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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