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Product comparison · 2 pcs/workstations

HP Compaq dc5100 microtower pc (EC956ET) vs Lenovo ThinkCentre A51 Pentium 4 640 HT 3.2GHz

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  • 72specifications compared
  • 17differ
  • 55identical
  • 49known for one product only

Key differences

The Lenovo ThinkCentre A51 Pentium 4 640 HT 3.2GHz has 10 more processor model than the HP Compaq dc5100 microtower pc (EC956ET) (640 vs 630). The Lenovo ThinkCentre A51 Pentium 4 640 HT 3.2GHz has 0.2 GHz more processor frequency than the HP Compaq dc5100 microtower pc (EC956ET) (3.2 GHz vs 3 GHz). The Lenovo ThinkCentre A51 Pentium 4 640 HT 3.2GHz has 1 more CPU multiplier (bus/core ratio) than the HP Compaq dc5100 microtower pc (EC956ET) (16 vs 15). Only the Lenovo ThinkCentre A51 Pentium 4 640 HT 3.2GHz has thermal Monitoring Technologies. Internal memory type: DDR2-SDRAM on the HP Compaq dc5100 microtower pc (EC956ET), DDR-SDRAM on the Lenovo ThinkCentre A51 Pentium 4 640 HT 3.2GHz.

  • Processor model
    • 630
    • 640
  • Processor frequency
    • 3 GHz
    • 3.2 GHz
  • CPU multiplier (bus/core ratio)
    • 15
    • 16
  • Maximum internal memory
    • 4 GB
    • 2 GB
  • Internal memory type
    • DDR2-SDRAM
    • DDR-SDRAM
  • USB 2.0 ports quantity
    • 6
    • 8
  • Power supply
    • 300 W
    • 225 W
  • Processor ARK ID
    • 27478
    • 27480

Side by side

Differences highlightedShow differences only
121 specifications
A

HP

Compaq dc5100 microtower pc (EC956ET)View product
B

Lenovo

ThinkCentre A51 Pentium 4 640 HT 3.2GHzView product
Processor3 differ
Processor modelDiffers630640
Processor frequencyDiffers3 GHz3.2 GHz
PCI Express slots versionKnown for one2.0
CPU multiplier (bus/core ratio)Differs1516
Processor core voltage (AC)Known for one1.25 - 1.388 V
Maximum internal memory supported by processorKnown for one32 GB
Memory types supported by processorKnown for oneDDR3-SDRAM
Memory clock speeds supported by processorKnown for one1066 MHz
Memory bandwidth supported by processor (max)Known for one17 GB/s
Processor seriesKnown for oneIntel Pentium 4 600 Series supporting Hyper-Threading Technology
Number of processors installedKnown for one1
Processor technologyKnown for oneHT
Memory2 differ
Maximum internal memoryDiffers4 GB2 GB
Internal memory typeDiffersDDR2-SDRAMDDR-SDRAM
Memory channelsKnown for oneDual-channel
Memory slotsKnown for one4x DIMM
Storageidentical
Optical drive typeKnown for oneDVD-ROM
Diskette drive memoryKnown for one1.44 MB
Storage drive controllerKnown for oneSMART III Serial ATA, 1.5GB/s
Graphics1 differ
On-board graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneIntel® GMA 900
On-board graphics card familyKnown for oneIntel® HD Graphics
On-board graphics card modelKnown for oneIntel® HD Graphics
Number of displays supported (on-board graphics)Known for one2
On-board graphics card base frequencyKnown for one850 MHz
On-board graphics card dynamic frequency (max)Known for one1100 MHz
Video adapter resolutionDiffers1920x1440@100Hz; 2048x1536@75Hz2048x1536 16777216 colors
Video adapter, busKnown for onePCI Express
Graphics card RAMDACKnown for one400 MHz
Maximum graphics card memoryKnown for one0.128 GB
Optical driveidentical
CD read speedKnown for one48x
CD write speedKnown for one48x
CD rewrite speedKnown for one32x
DVD read speedKnown for one16x
Network1 differ
Networking featuresDiffersGigabit EthernetEthernet/Fast Ethernet/Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers68
Serial ports quantityKnown for one1
Power1 differ
Power supplyDiffers300 W225 W
Designidentical
Chassis typeKnown for oneSFF
External drive baysKnown for one2x 5.25"; 2x 3.5"
Internal drive baysKnown for one2x 3.5"
Country of originKnown for oneChina
Software1 differ
Operating system installedKnown for oneWindows XP Professional
Bundled softwareDiffersMicrosoft Office SBE 2003 Norton Antivirus 2005Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium (license), Access program, IBM Director Agent (web deliverable), ThinkVantage Client Security Software (web-downloadable), ThinkVantage Rescue and Recovery with Rapid Restore, Norton AntiVirus 2004 OEM Version, PC Doctor diagnosti
Compatible operating systemsKnown for oneMicrosoft Windows XP Professional
Processor special features2 differ
CPU configuration (max)Known for one1
Processor ARK IDDiffers2747827480
Supported instruction setsKnown for oneSSE4.1/4.2
Thermal Monitoring TechnologiesDiffersNoYes
Intel Dual Display Capable TechnologyKnown for oneNo
Intel FDI TechnologyKnown for oneNo
Intel Fast Memory AccessKnown for oneNo
Intel Flex Memory AccessKnown for oneNo
Intel VT-x with Extended Page Tables (EPT)Known for oneNo
Audio1 differ
Audio systemDiffersIntegratedSoundMAX Cadenza
Weight & dimensions4 differ
WidthDiffers175 mm309 mm
DepthDiffers420 mm359 mm
HeightDiffers366 mm85 mm
WeightDiffers11 kg8.5 kg
Other featuresidentical
Security featuresKnown for one-Boot without keyboard or mouse -Configuration password -Diskette Boot inhibit -Diskette I/O control -Hard disk drive password -Hard drive I/O control -Parallel port I/O control -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control -U-Bolt anchoring featu
Bundled hardwareKnown for oneOptical Mouse
Expansion slotsidentical
Expansion slotsKnown for onePCI express x1
Operational conditionsidentical
Operating temperature (T-T)Known for one10 - 35 °C
Storage temperature (T-T)Known for one-30 - 60 °C
Operating relative humidity (H-H)Known for one10 - 90%
Storage relative humidity (H-H)Known for one5 - 95%

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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