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Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US vs Lenovo TS ThinkCentre A51 P4-3.0 HT 256/40G/DVD/LAN/WXP

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  • 82specifications compared
  • 29differ
  • 53identical
  • 9known for one product only

Key differences

The Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US has 100 more processor model than the Lenovo TS ThinkCentre A51 P4-3.0 HT 256/40G/DVD/LAN/WXP (630 vs 530). The Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US has 1 more processor threads than the Lenovo TS ThinkCentre A51 P4-3.0 HT 256/40G/DVD/LAN/WXP (2 vs 1). The Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US has 1.27 GHz more processor frequency than the Lenovo TS ThinkCentre A51 P4-3.0 HT 256/40G/DVD/LAN/WXP (3 GHz vs 1.73 GHz). Only the Lenovo TS ThinkCentre A51 P4-3.0 HT 256/40G/DVD/LAN/WXP has embedded options available. Only the Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US has enhanced Intel SpeedStep Technology.

  • Processor model
    • 630
    • 530
  • Processor threads
    • 2
    • 1
  • Processor frequency
    • 3 GHz
    • 1.73 GHz
  • Processor cache
    • 2 MB
    • 1 MB
  • Processor front side bus
    • 800 MHz
    • 533 MHz
  • Processor lithography
    • 90 nm
    • 65 nm
  • Processor codename
    • Prescott
    • Merom
  • Thermal Design Power (TDP)
    • 84 W
    • 27 W

Side by side

Differences highlightedShow differences only
91 specifications
A

Lenovo

ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP USView product
B

Lenovo

TS ThinkCentre A51 P4-3.0 HT 256/40G/DVD/LAN/WXPView product
Processor13 differ
Processor manufacturerIntelIntel
Processor familyIntel® Pentium® 4Intel® Pentium® 4
Processor modelDiffers630530
Processor cores11
Processor threadsDiffers21
Processor frequencyDiffers3 GHz1.73 GHz
Processor cacheDiffers2 MB1 MB
Processor cache typeL2L2
Processor front side busDiffers800 MHz533 MHz
Bus typeFSBFSB
FSB ParityNoNo
Processor lithographyDiffers90 nm65 nm
Processor operating modes64-bit64-bit
Processor codenameDiffersPrescottMerom
Thermal Design Power (TDP)Differs84 W27 W
TcaseDiffers66.6 °C67.7 °C
TjunctionKnown for one100 °C
Processor socketDiffersLGA 775 (Socket T)Socket AM2
Number of Processing Die TransistorsDiffers169 M291 M
Processing Die sizeDiffers135 mm²143 mm²
CPU multiplier (bus/core ratio)Differs1514
Processor core voltage (AC)Known for one0.95 - 1.30 V
SteppingKnown for oneA1
ECC supported by processorNoNo
Processor seriesKnown for oneIntel Pentium 4 600 Series supporting Hyper-Threading Technology
Memory2 differ
Internal memoryDiffers0.5 GB0.25 GB
Maximum internal memoryDiffers4 GB2 GB
Internal memory typeDDR-SDRAMDDR-SDRAM
Storage1 differ
Total storage capacity40 GB40 GB
Optical drive typeDiffersCD-ROMDVD-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
DVD read speedKnown for one16x
CD read speedKnown for one48x
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
Power1 differ
Power supplyDiffers310 W225 W
Power supply typeKnown for one110~220V
Design1 differ
Chassis typeDiffersDesktopSmall Desktop
Software1 differ
Operating system installedWindows XP ProfessionalWindows XP Professional
Bundled softwareDiffersLotus 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), Norton AntiVirus 2004, PC Doctor diagnostics, Access Program, ThinkVantage Client Security Solution, ThinkVantage Rescue and Recovery with Rapid Restore, IBM Director Agent (web deliverable)
Displayidentical
Display includedNoNo
Processor special features5 differ
Embedded options availableDiffersNoYes
Enhanced Intel SpeedStep TechnologyDiffersYesNo
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 IDDiffers2747829733
Processor codeKnown for oneSLA2G
Processor package sizeDiffers37.5 x 37.5 mm35 mm
Thermal Monitoring TechnologiesNoNo
Intel® Turbo Boost TechnologyNoNo
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersYesNo
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 & dimensions4 differ
WidthDiffers175 mm127 mm
DepthDiffers450 mm390 mm
HeightDiffers492 mm346 mm
WeightDiffers13.5 kg8.5 kg
Other features1 differ
Security featuresDiffers-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-U-Bolt anchoring feature -Security slot (for attachment of optional cable lock) -Serial port I/O control -Power on password -Parallel port I/O control -Hard disk drive password -Hard drive I/O control -Diskette I/O control -Configuration password -Diskette Boot inhibit -Boot without keyboard or mou
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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