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Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51p P4-3.2 (640) HT 512/80G/DVD/LAN/WXP US vs Lenovo ThinkCentre M51 P4 530 3.0GHz

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  • 78specifications compared
  • 25differ
  • 53identical
  • 26known for one product only

Key differences

The Lenovo ThinkCentre A51p P4-3.2 (640) HT 512/80G/DVD/LAN/WXP US has 110 more processor model than the Lenovo ThinkCentre M51 P4 530 3.0GHz (640 vs 530). The Lenovo ThinkCentre A51p P4-3.2 (640) HT 512/80G/DVD/LAN/WXP US has 1 more processor threads than the Lenovo ThinkCentre M51 P4 530 3.0GHz (2 vs 1). The Lenovo ThinkCentre A51p P4-3.2 (640) HT 512/80G/DVD/LAN/WXP US has 1.47 GHz more processor frequency than the Lenovo ThinkCentre M51 P4 530 3.0GHz (3.2 GHz vs 1.73 GHz). Only the Lenovo ThinkCentre M51 P4 530 3.0GHz has embedded options available. Only the Lenovo ThinkCentre A51p P4-3.2 (640) HT 512/80G/DVD/LAN/WXP US has enhanced Intel SpeedStep Technology.

  • Processor model
    • 640
    • 530
  • Processor threads
    • 2
    • 1
  • Processor frequency
    • 3.2 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
104 specifications
A

Lenovo

ThinkCentre A51p P4-3.2 (640) HT 512/80G/DVD/LAN/WXP USView product
B

Lenovo

ThinkCentre M51 P4 530 3.0GHzView product
Processor14 differ
Processor modelDiffers640530
Processor threadsDiffers21
Processor frequencyDiffers3.2 GHz1.73 GHz
Processor cacheDiffers2 MB1 MB
Processor front side busDiffers800 MHz533 MHz
Processor lithographyDiffers90 nm65 nm
Processor codenameDiffersPrescottMerom
Thermal Design Power (TDP)Differs84 W27 W
TcaseDiffers66.6 °C67.7 °C
PCI Express slots versionKnown for one2.0
Processor socketDiffersLGA 775 (Socket T)Socket AM2
Number of Processing Die TransistorsDiffers169 M291 M
Processing Die sizeDiffers135 mm²143 mm²
CPU multiplier (bus/core ratio)Differs1614
Processor core voltage (AC)Differs1.25 - 1.388 V0.95 - 1.30 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
SteppingKnown for oneA1
Memory1 differ
Internal memory typeDiffersDDR2-SDRAMDDR-SDRAM
Memory channelsKnown for oneDual-channel
Storage2 differ
Total storage capacityDiffers80 GB40 GB
Optical drive typeDiffersDVD-ROMCD-ROM
Graphicsidentical
On-board graphics cardKnown for oneYes
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
Optical driveidentical
DVD read speedKnown for one16x
CD read speedKnown for one48x
Poweridentical
Power supply typeKnown for one110~220V
Software1 differ
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)
Processor special features6 differ
CPU configuration (max)Known for one1
Embedded options availableDiffersNoYes
Enhanced Intel SpeedStep TechnologyDiffersYesNo
Processor ARK IDDiffers2748029733
Processor package sizeDiffers37.5 x 37.5 mm35 mm
Supported instruction setsKnown for oneSSE4.1/4.2
Thermal Monitoring TechnologiesDiffersYesNo
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersYesNo
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
Processor codeKnown for oneSLA2G
Other features1 differ
Security featuresDiffers-Boot without keyboard or mouse -Configuration password -Boot sequence control -Serial port I/O control -Secure Data Disposal -Parallel port I/O control -Power on password -Kensington Lock Standard Enabled -Hardfile I/O control -Diskette boot inhibit -Diskette I/O control -Embedded Security Subsyste-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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