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Product comparison · 2 pcs/workstations

HP dc7900 SFF + L1908W vs Lenovo ThinkCentre A57 + L1940

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  • 86specifications compared
  • 32differ
  • 54identical
  • 16known for one product only

Key differences

The Lenovo ThinkCentre A57 + L1940 has 2 more processor cores than the HP dc7900 SFF + L1908W (4 vs 2). The Lenovo ThinkCentre A57 + L1940 has 2 more processor threads than the HP dc7900 SFF + L1908W (4 vs 2). The HP dc7900 SFF + L1908W has 0.6 GHz more processor frequency than the Lenovo ThinkCentre A57 + L1940 (3 GHz vs 2.4 GHz). Only the HP dc7900 SFF + L1908W has embedded options available. Only the HP dc7900 SFF + L1908W has Intel Trusted Execution Technology.

  • Processor family
    • Intel® Core™2 Duo
    • Intel® Core™2 Quad
  • Processor model
    • E8400
    • Q6600
  • Processor cores
    • 2
    • 4
  • Processor threads
    • 2
    • 4
  • Processor frequency
    • 3 GHz
    • 2.4 GHz
  • Processor cache
    • 6 MB
    • 8 MB
  • Processor front side bus
    • 1333 MHz
    • 1066 MHz
  • Processor lithography
    • 45 nm
    • 65 nm

Side by side

Differences highlightedShow differences only
102 specifications
A

HP

dc7900 SFF + L1908WView product
B

Lenovo

ThinkCentre A57 + L1940View product
Processor15 differ
Processor familyDiffersIntel® Core™2 DuoIntel® Core™2 Quad
Processor modelDiffersE8400Q6600
Processor coresDiffers24
Processor threadsDiffers24
Processor frequencyDiffers3 GHz2.4 GHz
Processor cacheDiffers6 MB8 MB
Processor front side busDiffers1333 MHz1066 MHz
Processor lithographyDiffers45 nm65 nm
Processor seriesDiffersIntel Core 2 Duo E8000 SeriesIntel Core 2 Quad Q6000 Series
Processor codenameDiffersWolfdaleKentsfield
Thermal Design Power (TDP)Differs65 W95, 105
TcaseDiffers72.4 °CB3=62.2; G0=71
Number of Processing Die TransistorsDiffers410 M582 M
Processing Die sizeDiffers107 mm²286 mm²
SteppingDiffersE0G0
Processor core voltage (AC)Known for one0.85 - 1.5 V
Memory1 differ
Maximum internal memoryDiffers16 GB4 GB
Memory slotsKnown for one2x DIMM
Storage1 differ
Total storage capacityDiffers160 GB320 GB
Graphics1 differ
Discrete graphics card modelDiffersIntel® GMA 4500MIntel® GMA 3100
On-board graphics card modelKnown for oneNot available
Optical driveidentical
LightScribeKnown for oneYes
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers86
Serial ports quantityDiffers10
Parallel ports quantityDiffers01
Poweridentical
Power consumption (typical)Known for one240 W
Power supplyKnown for one280 W
Power supply input voltageKnown for one110 - 220 V
Power supply input frequencyKnown for one50 - 60 Hz
Design1 differ
Chassis typeDiffersSFFTower
Country of originKnown for oneChina
Display1 differ
Display resolutionDiffers1440 x 900 pixels1280 x 1024 pixels
Contrast ratio (typical)Known for one1000:1
Display brightnessKnown for one300 cd/m²
Viewing angle, horizontalKnown for one160°
Viewing angle, verticalKnown for one160°
Processor special features4 differ
Embedded options availableDiffersYesNo
Graphics & IMC lithographyKnown for one45 nm
Intel Trusted Execution TechnologyDiffersYesNo
Intel Virtualization Technology for Directed I/O (VT-d)DiffersYesNo
Processor ARK IDDiffers3391029765
Processor codeKnown for oneSLB9J
Audio1 differ
Audio systemDiffersHigh Definition AudioRealtek ALC662
Operational conditionsidentical
Non-operating altitudeKnown for one9144
Weight & dimensions4 differ
WidthDiffers337 mm175 mm
DepthDiffers378 mm440 mm
HeightDiffers100 mm402 mm
WeightDiffers8.5 kg11 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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