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Product comparison · 2 pcs/workstations

Acer Aspire E571 Intel® Core™2 Duo E6400 vs Lenovo ThinkCentre M55 Ultra Small Desktop, DK

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  • 80specifications compared
  • 28differ
  • 52identical
  • 29known 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
109 specifications
A

Acer

Aspire E571 Intel® Core™2 Duo E6400

Model E571

View product
B

Lenovo

ThinkCentre M55 Ultra Small Desktop, DKView product
Processor12 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Core™2 DuoIntel® Pentium® D
Processor modelDiffersE6400915
Processor cores22
Processor threads22
Processor frequencyDiffers2.13 GHz2.8 GHz
Processor cacheDiffers2 MB4 MB
Processor cache typeL2L2
Processor front side busDiffers1066 MHz800 MHz
Bus typeFSBFSB
FSB ParityNoNo
Processor lithography65 nm65 nm
Processor operating modes64-bit64-bit
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 installed11
Processor socketLGA 775 (Socket T)LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers167 M376 M
Processing Die sizeDiffers111 mm²162 mm²
CPU multiplier (bus/core ratio)Differs814
ECC supported by processorNoNo
Memory1 differ
Internal memoryDiffers2 GB1 GB
Maximum internal memory4 GB4 GB
Internal memory typeDDR2-SDRAMDDR2-SDRAM
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
HDD interfaceSATASATA
HDD speed7200 RPM7200 RPM
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
Product typePCPC
Audio output channelsKnown for one7.1 channels
Optical driveidentical
Optical drives quantityKnown for one1
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 oneGigabit 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
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Line-inYesYes
Microphone inYesYes
VGA (D-Sub) ports quantity11
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
Parallel ports quantity11
Line-outKnown for oneYes
Design1 differ
Chassis typeDiffersMini TowerSFF
Product colourKnown for oneSilver
Cooling typeKnown for oneActive
Software2 differ
Operating system installedDiffersWindows Vista Home PremiumWindows Vista Business
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 Picasa (Google) Microsoft Office Hybrid Pro Image 2007
Displayidentical
Display includedNoNo
Processor special features4 differ
Embedded options availableDiffersYesNo
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingNoNo
Intel Dual Display Capable TechnologyNoNo
Intel Enhanced Halt StateYesYes
Intel FDI TechnologyNoNo
Intel Fast Memory AccessNoNo
Intel Flex Memory AccessNoNo
Intel Rapid Storage TechnologyNoNo
Intel Trusted Execution TechnologyNoNo
Intel VT-x with Extended Page Tables (EPT)NoNo
Intel Virtualization Technology (VT-x)DiffersYesNo
Intel Virtualization Technology for Directed I/O (VT-d)NoNo
Intel® AES New Instructions (Intel® AES-NI)NoNo
Intel® Clear Video HD Technology (Intel® CVT HD)NoNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)NoNo
Intel® InTru™ 3D TechnologyNoNo
Intel® Insider™NoNo
Intel® Wireless Display (Intel® WiDi)NoNo
Processor ARK IDDiffers2724927515
Processor package size37.5 x 37.5 mm37.5 x 37.5 mm
Thermal Monitoring TechnologiesDiffersYesNo
Intel® Turbo Boost TechnologyNoNo
Intel® Hyper Threading Technology (Intel® HT Technology)NoNo
Intel® Quick Sync Video TechnologyNoNo
Intel® My WiFi Technology (Intel® MWT)NoNo
Intel® Anti-Theft Technology (Intel® AT)NoNo
Conflict-Free processorNoNo
Physical Address Extension (PAE)Known for one32 bit
Audio1 differ
Audio systemDiffersHDADI 1983 HD
Weight & dimensions3 differ
WidthDiffers180 mm270 mm
DepthDiffers420 mm89 mm
HeightDiffers360 mm276 mm
WeightKnown for one6.4 kg
Packaging contentidentical
Mouse includedYesYes
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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