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Product comparison · 2 pcs/workstations

HP Compaq dc5100 P4 640 HT 512M/40G DVD-CDRW LAN WXP Pro SP2 Microtower PC vs Lenovo ThinkCentre A51p

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  • 59specifications compared
  • 14differ
  • 45identical
  • 74known for one product only

Key differences

  • Processor model
    • 640
    • 550
  • Processor frequency
    • 3.2 GHz
    • 3.4 GHz
  • Processor cache
    • 2 MB
    • 1 MB
  • Tcase
    • 66.6 °C
    • 72.8 °C
  • Memory layout (slots x size)
    • 1 x 0.5 GB
    • 2 x 0.5 GB
  • Total storage capacity
    • 40 GB
    • 160 GB
  • Serial ports quantity
    • 1
    • 0
  • Enhanced Intel SpeedStep Technology
    • Yes
    • No

Side by side

Differences highlightedShow differences only
133 specifications
A

HP

Compaq dc5100 P4 640 HT 512M/40G DVD-CDRW LAN WXP Pro SP2 Microtower PCView product
B

Lenovo

ThinkCentre A51pView product
Processor4 differ
Processor modelDiffers640550
Processor threadsKnown for one2
Processor frequencyDiffers3.2 GHz3.4 GHz
Processor cacheDiffers2 MB1 MB
Processor lithographyKnown for one90 nm
Processor operating modesKnown for one64-bit
Processor codenameKnown for onePrescott
Thermal Design Power (TDP)Known for one84 W
TcaseDiffers66.6 °C72.8 °C
PCI Express slots versionKnown for one2.0
Processor socketKnown for oneLGA 775 (Socket T)
Number of Processing Die TransistorsKnown for one169 M
Processing Die sizeKnown for one135 mm²
CPU multiplier (bus/core ratio)Known for one16
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
TjunctionKnown for one100 °C
Memory1 differ
Memory layout (slots x size)Differs1 x 0.5 GB2 x 0.5 GB
Memory slotsKnown for one4x DIMM
Memory channelsKnown for oneDual-channel
Memory upgradeKnown for one4 GB
Storage1 differ
Total storage capacityDiffers40 GB160 GB
Storage drive controllerKnown for oneSMART III Serial ATA 1.5 GB/s
Disk subsystem controllerKnown for oneSMART III Serial ATA 1.5 GB/s
Diskette driveKnown for oneNo
Storage drive typeKnown for one40 GB
Optical drive typeKnown for oneDVD±RW
HDD interfaceKnown for oneSATA
Card reader integratedKnown for oneNo
Diskette drive memoryKnown for one1.44 MB
Graphicsidentical
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
Maximum graphics card memoryKnown for one0.128 GB
Video card featuresKnown for one3D/2D Controller (Microsoft DirectX 9), VGA integrated controller, RAMDAC integrated (400 MHz) Intel Graphics Media Accelerator 900 100Hz @ 1920x1440, 75Hz @ 2048x1536 3D/2D Controller (Microsoft DirectX 9), VGA integrated controller, RAMDAC integrat
Video adapter, busKnown for oneWith the GV chipset, the integrated graphics is always enabled. Plugging in the PCI card does not disable it and does not require the integrated graphics to be re-enabled
Video card resolutionKnown for oneMaximum Vertical Refresh Rate: 100 Hz at up to 1920x1440, 75Hz at 2048x1536. Varies with mode and configuration
Performanceidentical
Acoustic power emissionsKnown for oneIDLE (Fixed disk drive spinning): LWAd = 4.1 Bels; FIXED DISK (Random write): LWAd = 4.2 Bels; OPTICAL DRIVE (Sequential Reads): LWAd = 5.3 Bels
Networkidentical
Modem typeKnown for oneNo
Ports & interfaces1 differ
Serial ports quantityDiffers10
I/O portsKnown for oneRear: 6 USB 2.0, 1 standard serial, 1 optional serial, 1 parallel, 2 PS/2, 1 RJ-45, 1 VGA, audio in/out; Front: 2 USB 2.0, headphone and microphone
Expansion slotsidentical
Expansion slotsKnown for one2 x PCI (full-height) 1 x PCI-Express X1 (full-height)
Poweridentical
Power requirementsKnown for one90 ~ 132 / 180 ~ 264 VAC, 50/60 Hz
Power consumption (typical)Known for one300 W
Power supplyKnown for one310 W
Power supply input voltageKnown for one110 - 220 V
Power supply input frequencyKnown for one50 - 60 Hz
Designidentical
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneKensington
Country of originKnown for oneChina
Chassis typeKnown for oneTower
Software1 differ
Bundled softwareDiffersAltiris Deployment Solution Agent, HP Client Manager Software, Local Diskette Boot, Network Boot, Disk-on-Key Boot Microsoft Windows XP Professional SP2, Microsoft Windows XP Home SP2, Computer Setup Utility, Diagnostics for Windows, Microsoft InterLotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium (license), Lotus SmartSuite Millennium, Access program, IBM Director Agent (web deliverable), ThinkVantage Client Security Software (web-downloadable), Norton AntiVirus 2004 OEM Version, PC Doctor diagnostics, ThinkVantage Rescue
Driver LANKnown for oneMicrosoft Windows NT 4.0, Microsoft Windows 98, Microsoft 2000, Microsoft XP, Linux 2.2, Linux 2.4
Processor special features2 differ
CPU configuration (max)Known for one1
Embedded options availableKnown for oneNo
Enhanced Intel SpeedStep TechnologyDiffersYesNo
Execute Disable BitKnown for oneYes
Intel 64Known for oneYes
Processor ARK IDKnown for one27480
Processor package sizeKnown for one37.5 x 37.5 mm
Supported instruction setsKnown for oneSSE4.1/4.2
Thermal Monitoring TechnologiesDiffersYesNo
Intel® Hyper Threading Technology (Intel® HT Technology)Known for oneYes
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 systemDiffersIntegrated Digital AudioSoundMAX Cadenza
Audio includedKnown for oneSoundMax Digital AC97 Integrated Audio with Internal Speaker
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%
Relative humidityKnown for one10 - 90%
Non-operating relative humidity (non-condensing)Known for one5 - 95%
Weight & dimensions3 differ
DepthDiffers420 mm450 mm
HeightDiffers366 mm492 mm
WeightDiffers11 kg13.5 kg
Keyboardidentical
Pointing deviceKnown for one2-Button Scroll Mouse PS/2 2-button scroll mouse
Keyboard typeKnown for one2004 standard PS/2 Standard Keyboard
Other featuresidentical
Security featuresKnown for oneMechanical Hood Security Provision; Kensington Lock Support; Cable Lock Provision; Serial, Parallel, USB Enable/Disable; Removable Media Write/Boot Control; Power-On Password; Setup Password
Drive baysKnown for one2 x 5.25" (ext) & 2 x 3.5" (ext), 2 x 3.5" (int)

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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