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Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51p P4 630 3.0GHz vs Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US

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  • 84specifications compared
  • 4differ
  • 80identical
  • 3known for one product only

Key differences

The Lenovo ThinkCentre A51p P4 630 3.0GHz has 40 GB more total storage capacity than the Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US (80 GB vs 40 GB). Internal memory type: DDR2-SDRAM on the Lenovo ThinkCentre A51p P4 630 3.0GHz, DDR-SDRAM on the Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US. Optical drive type: DVD-ROM on the Lenovo ThinkCentre A51p P4 630 3.0GHz, CD-ROM on the Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US.

  • Internal memory type
    • DDR2-SDRAM
    • DDR-SDRAM
  • Total storage capacity
    • 80 GB
    • 40 GB
  • Optical drive type
    • DVD-ROM
    • CD-ROM

Side by side

Differences highlightedShow differences only
87 specifications
A

Lenovo

ThinkCentre A51p P4 630 3.0GHzView product
B

Lenovo

ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP USView product
Processoridentical
Processor manufacturerIntelIntel
Processor familyIntel® Pentium® 4Intel® Pentium® 4
Processor model630630
Processor cores11
Processor threads22
Processor frequency3 GHz3 GHz
Processor cache2 MB2 MB
Processor cache typeL2L2
Processor front side bus800 MHz800 MHz
Bus typeFSBFSB
FSB ParityNoNo
Processor lithography90 nm90 nm
Processor operating modes64-bit64-bit
Processor seriesIntel Pentium 4 600 Series supporting Hyper-Threading TechnologyIntel Pentium 4 600 Series supporting Hyper-Threading Technology
Processor codenamePrescottPrescott
Thermal Design Power (TDP)84 W84 W
Tcase66.6 °C66.6 °C
Processor socketLGA 775 (Socket T)LGA 775 (Socket T)
Number of Processing Die Transistors169 M169 M
Processing Die size135 mm²135 mm²
CPU multiplier (bus/core ratio)1515
ECC supported by processorNoNo
Memory1 differ
Internal memory0.5 GB0.5 GB
Maximum internal memory4 GB4 GB
Internal memory typeDiffersDDR2-SDRAMDDR-SDRAM
Storage2 differ
Total storage capacityDiffers80 GB40 GB
Optical drive typeDiffersDVD-ROMCD-ROM
Storage drive typeSATASATA
Diskette drive memory1.44 MB1.44 MB
Graphicsidentical
Discrete graphics card modelIntel® GMA 900Intel® GMA 900
Video adapter, busPCI ExpressPCI Express
Performanceidentical
Product typePCPC
Optical driveidentical
CD read speedKnown for one48x
DVD read speedKnown for one16x
Networkidentical
Networking featuresEthernet/Fast Ethernet/Gigabit EthernetEthernet/Fast Ethernet/Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity88
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Microphone inYesYes
VGA (D-Sub) ports quantity11
PS/2 ports quantity22
Parallel ports quantity11
Poweridentical
Power supply type110~220V110~220V
Power supply310 W310 W
Designidentical
Chassis typeDesktopDesktop
Softwareidentical
Operating system installedWindows XP ProfessionalWindows XP Professional
Bundled softwareLotus 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 RescueLotus 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
Displayidentical
Display includedNoNo
Processor special featuresidentical
Embedded options availableNoNo
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Idle StatesNoNo
Intel 64YesYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingNoNo
Intel Dual Display Capable TechnologyNoNo
Intel Enhanced Halt StateNoNo
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 ID2747827478
Processor package size37.5 x 37.5 mm37.5 x 37.5 mm
Thermal Monitoring TechnologiesNoNo
Intel® Turbo Boost TechnologyNoNo
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Quick Sync Video TechnologyNoNo
Intel® My WiFi Technology (Intel® MWT)NoNo
Intel® Anti-Theft Technology (Intel® AT)NoNo
Conflict-Free processorNoNo
Audioidentical
Audio systemSoundMAX CadenzaSoundMAX Cadenza
Weight & dimensionsidentical
Width175 mm175 mm
Depth450 mm450 mm
Height492 mm492 mm
Weight13.5 kg13.5 kg
Other features1 differ
Security featuresDiffers-Serial port I/O control -Power on password -Secure Data Disposal -Parallel port I/O control -Hardfile I/O control -Kensington Lock Standard Enabled -Hard disk drive password -Boot without keyboard or mouse -Configuration password -Diskette I/O control -Embedded Security Subsystem standard -Diskette-Boot without keyboard or mouse -Configuration password -Diskette Boot inhibit -Diskette I/O control -Hard disk drive password -Hard drive I/O control -Padlock loop -Parallel port I/O control -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control
Intel segment taggingKnown for oneEnterprise, Professional

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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