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Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A57 + D221 vs Lenovo ThinkCentre A57 + Lenovo D221

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  • 91specifications compared
  • 24differ
  • 67identical
  • 8known for one product only

Key differences

The Lenovo ThinkCentre A57 + Lenovo D221 has 0.26 GHz more processor frequency than the Lenovo ThinkCentre A57 + D221 (2.66 GHz vs 2.4 GHz). The Lenovo ThinkCentre A57 + Lenovo D221 has 4 MB more processor cache than the Lenovo ThinkCentre A57 + D221 (6 MB vs 2 MB). The Lenovo ThinkCentre A57 + Lenovo D221 has 533 MHz more processor front side bus than the Lenovo ThinkCentre A57 + D221 (1333 MHz vs 800 MHz). Only the Lenovo ThinkCentre A57 + Lenovo D221 has Intel Trusted Execution Technology. Only the Lenovo ThinkCentre A57 + Lenovo D221 has Intel Virtualization Technology (VT-x).

  • Processor model
    • E4600
    • E8200
  • Processor frequency
    • 2.4 GHz
    • 2.66 GHz
  • Processor cache
    • 2 MB
    • 6 MB
  • Processor front side bus
    • 800 MHz
    • 1333 MHz
  • Processor lithography
    • 65 nm
    • 45 nm
  • Processor codename
    • Conroe
    • Wolfdale
  • Tcase
    • 73.3 °C
    • 72.4 °C
  • Number of Processing Die Transistors
    • 167 M
    • 410 M

Side by side

Differences highlightedShow differences only
99 specifications
A

Lenovo

ThinkCentre A57 + D221View product
B

Lenovo

ThinkCentre A57 + Lenovo D221View product
Processor12 differ
Processor manufacturerIntelIntel
Processor familyIntel® Core™2 DuoIntel® Core™2 Duo
Processor modelDiffersE4600E8200
Processor cores22
Processor threads22
Processor frequencyDiffers2.4 GHz2.66 GHz
Processor cacheDiffers2 MB6 MB
Processor cache typeL2L2
Processor front side busDiffers800 MHz1333 MHz
Bus typeFSBFSB
FSB ParityNoNo
Processor lithographyDiffers65 nm45 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Core 2 Duo E4000 SeriesIntel Core 2 Duo E8000 Series
Processor codenameDiffersConroeWolfdale
Thermal Design Power (TDP)65 W65 W
TcaseDiffers73.3 °C72.4 °C
Processor socketLGA 775 (Socket T)LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers167 M410 M
Processing Die sizeDiffers111 mm²107 mm²
CPU multiplier (bus/core ratio)Differs128
SteppingDiffersM0C0
ECC supported by processorNoNo
Memoryidentical
Internal memory2 GB2 GB
Maximum internal memory4 GB4 GB
Internal memory typeDDR2-SDRAMDDR2-SDRAM
Memory layout (slots x size)2 x 1 GB2 x 1 GB
Memory slots2x DIMM2x DIMM
Storageidentical
Total storage capacity250 GB250 GB
Optical drive typeDVD±RWDVD±RW
HDD interfaceSATASATA
HDD speed7200 RPM7200 RPM
Card reader integratedKnown for oneNo
Graphicsidentical
Discrete graphics card modelIntel® GMA 3100Intel® GMA 3100
Performanceidentical
Product typePCPC
Network1 differ
Networking featuresDiffersgGigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity66
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Microphone inYesYes
VGA (D-Sub) ports quantity11
PS/2 ports quantity22
Serial ports quantityKnown for one1
Parallel ports quantity11
DVI portKnown for oneYes
Power1 differ
Power requirementsKnown for one110 - 220V, 50/ 60Hz
Power supplyDiffers310 W250 W
Power supply input voltageKnown for one110 - 220 V
Power supply input frequencyKnown for one50 - 60 Hz
Design1 differ
Chassis typeDiffersTowerSFF
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneIBM
Softwareidentical
Operating system installedWindows Vista BusinessWindows Vista Business
Displayidentical
Display includedYesYes
Display diagonal55.9 cm (22")55.9 cm (22")
Display resolution1680 x 1050 pixels1680 x 1050 pixels
Contrast ratio (typical)700:1700:1
Display brightness300 cd/m²300 cd/m²
Viewing angle, horizontal176°176°
Viewing angle, vertical176°176°
DisplayTFTTFT
Processor special features4 differ
Embedded options availableNoNo
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 TechnologyDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)NoNo
Intel Virtualization Technology (VT-x)DiffersNoYes
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 IDDiffers3224233909
Processor codeDiffersSLA94SLAPP
Processor package size37.5 x 37.5 mm37.5 x 37.5 mm
Thermal Monitoring TechnologiesYesYes
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
Audio1 differ
Audio systemDiffersRealtek ALC662ALC662
Weight & dimensions4 differ
WidthDiffers175 mm317 mm
DepthDiffers440 mm355 mm
HeightDiffers402 mm99 mm
WeightDiffers11 kg3.31 kg

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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