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Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A57 + D221 vs Lenovo ThinkCentre M57 + ThinkVision D221

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  • 91specifications compared
  • 10differ
  • 81identical
  • 16known for one product only

Key differences

The Lenovo ThinkCentre A57 + D221 has 1 GB more internal memory than the Lenovo ThinkCentre M57 + ThinkVision D221 (2 GB vs 1 GB). The Lenovo ThinkCentre A57 + D221 has 1 x 1 GB more memory layout (slots x size) than the Lenovo ThinkCentre M57 + ThinkVision D221 (2 x 1 GB vs 1 x 1 GB). The Lenovo ThinkCentre M57 + ThinkVision D221 has 2 more USB 2.0 ports quantity than the Lenovo ThinkCentre A57 + D221 (8 vs 6). Networking features: g on the Lenovo ThinkCentre A57 + D221, Gigabit Ethernet on the Lenovo ThinkCentre M57 + ThinkVision D221. Audio system: Realtek ALC662 on the Lenovo ThinkCentre A57 + D221, AD1882 on the Lenovo ThinkCentre M57 + ThinkVision D221.

  • Internal memory
    • 2 GB
    • 1 GB
  • Memory layout (slots x size)
    • 2 x 1 GB
    • 1 x 1 GB
  • Networking features
    • g
    • Gigabit Ethernet
  • USB 2.0 ports quantity
    • 6
    • 8
  • Power supply
    • 310 W
    • 225 W
  • Audio system
    • Realtek ALC662
    • AD1882
  • Width
    • 175 mm
    • 276 mm
  • Depth
    • 440 mm
    • 273 mm

Side by side

Differences highlightedShow differences only
107 specifications
A

Lenovo

ThinkCentre A57 + D221View product
B

Lenovo

ThinkCentre M57 + ThinkVision D221View product
Processoridentical
Processor manufacturerIntelIntel
Processor familyIntel® Core™2 DuoIntel® Core™2 Duo
Processor modelE4600E4600
Processor cores22
Processor threads22
Processor frequency2.4 GHz2.4 GHz
Processor cache2 MB2 MB
Processor cache typeL2L2
Processor front side bus800 MHz800 MHz
Bus typeFSBFSB
FSB ParityNoNo
Processor lithography65 nm65 nm
Processor operating modes64-bit64-bit
Processor seriesIntel Core 2 Duo E4000 SeriesIntel Core 2 Duo E4000 Series
Processor codenameConroeConroe
Thermal Design Power (TDP)65 W65 W
Tcase73.3 °C73.3 °C
Processor socketLGA 775 (Socket T)LGA 775 (Socket T)
Number of Processing Die Transistors167 M167 M
Processing Die size111 mm²111 mm²
CPU multiplier (bus/core ratio)1212
SteppingM0M0
ECC supported by processorNoNo
Memory2 differ
Internal memoryDiffers2 GB1 GB
Maximum internal memory4 GB4 GB
Internal memory typeDDR2-SDRAMDDR2-SDRAM
Memory layout (slots x size)Differs2 x 1 GB1 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 integratedNoNo
Floppy drive installedKnown for oneNo
Graphicsidentical
On-board graphics cardKnown for oneYes
Discrete graphics card modelIntel® GMA 3100Intel® GMA 3100
Performanceidentical
Product typePCPC
Network1 differ
Ethernet LANKnown for oneYes
Wi-FiKnown for oneNo
Networking featuresDiffersgGigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers68
HDMI ports quantityKnown for one0
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Microphone inYesYes
VGA (D-Sub) ports quantity11
DVI portKnown for oneNo
PS/2 ports quantity22
Firewire (IEEE 1394) portsKnown for one0
eSATA ports quantityKnown for one1
Serial ports quantity11
Parallel ports quantity11
Power1 differ
Power supplyDiffers310 W225 W
Power requirementsKnown for one110 - 220V, 50/ 60Hz
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°
DisplayKnown for oneTFT
Processor special featuresidentical
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 TechnologyNoNo
Intel VT-x with Extended Page Tables (EPT)NoNo
Intel Virtualization Technology (VT-x)NoNo
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 ID3224232242
Processor codeSLA94SLA94
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 ALC662AD1882
Weight & dimensions4 differ
WidthDiffers175 mm276 mm
DepthDiffers440 mm273 mm
HeightDiffers402 mm89 mm
WeightDiffers11 kg6.4 kg
Packaging contentidentical
Remote control includedKnown for oneNo
Other featuresidentical
TV tuner integratedKnown for oneNo
Intel segment taggingKnown for oneEnterprise, Professional
Designidentical
Chassis typeKnown for oneTower
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneIBM

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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