All categories
Phones & WearablesView all 31

Departments

Phones & WearablesComputers & TabletsComponents & StorageNetworkingPrinting & OfficePower & ChargingTV, Audio & VideoGaming, Toys & RobotsKitchen AppliancesHome AppliancesPersonal Care & HealthSmart Home & SecurityCar & MobilityTools & GardenCameras & Photo

Shopping country

Browse

All categoriesCompare products

Product comparison · 2 pcs/workstations

Lenovo TS ThinkCentre A51 P4 630 256MB 80GB XPP vs Lenovo TS ThinkCentre A51 P4 640 512MB 80GB XPP

Add a product
  • 79specifications compared
  • 19differ
  • 60identical
  • 28known for one product only

Key differences

The Lenovo TS ThinkCentre A51 P4 640 512MB 80GB XPP has 10 more processor model than the Lenovo TS ThinkCentre A51 P4 630 256MB 80GB XPP (640 vs 630). The Lenovo TS ThinkCentre A51 P4 640 512MB 80GB XPP has 0.2 GHz more processor frequency than the Lenovo TS ThinkCentre A51 P4 630 256MB 80GB XPP (3.2 GHz vs 3 GHz). The Lenovo TS ThinkCentre A51 P4 640 512MB 80GB XPP has 1 more CPU multiplier (bus/core ratio) than the Lenovo TS ThinkCentre A51 P4 630 256MB 80GB XPP (16 vs 15). Only the Lenovo TS ThinkCentre A51 P4 640 512MB 80GB XPP has thermal Monitoring Technologies. Internal memory type: DDR2-SDRAM on the Lenovo TS ThinkCentre A51 P4 630 256MB 80GB XPP, DDR-SDRAM on the Lenovo TS ThinkCentre A51 P4 640 512MB 80GB XPP.

  • Processor model
    • 630
    • 640
  • Processor frequency
    • 3 GHz
    • 3.2 GHz
  • CPU multiplier (bus/core ratio)
    • 15
    • 16
  • Internal memory
    • 0.25 GB
    • 0.5 GB
  • Internal memory type
    • DDR2-SDRAM
    • DDR-SDRAM
  • DVD read speed
    • 16x
    • 12x
  • USB 2.0 ports quantity
    • 6
    • 8
  • Serial ports quantity
    • 1
    • 0

Side by side

Differences highlightedShow differences only
107 specifications
A

Lenovo

TS ThinkCentre A51 P4 630 256MB 80GB XPPView product
B

Lenovo

TS ThinkCentre A51 P4 640 512MB 80GB XPPView 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
Memory2 differ
Internal memoryDiffers0.25 GB0.5 GB
Maximum internal memoryKnown for one2 GB
Internal memory typeDiffersDDR2-SDRAMDDR-SDRAM
Memory channelsKnown for oneDual-channel
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 drive1 differ
CD read speedKnown for one48x
CD write speedKnown for one48x
CD rewrite speedKnown for one32x
DVD read speedDiffers16x12x
Network1 differ
Networking featuresDiffersEthernet/Fast EthernetEthernet/Fast Ethernet/Gigabit Ethernet
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers68
Firewire (IEEE 1394) portsKnown for one0
Serial ports quantityDiffers10
Modem (RJ-11) portsKnown for one0
USB 1.1 ports quantityKnown for one0
Power1 differ
Power supplyDiffers310 W225 W
Design1 differ
Chassis typeDiffersTowerSFF
Software1 differ
Bundled softwareDiffersLotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium edition (license), Access program, Norton AntiVirus 2005 with 90 days of virus definition upgrades, PC Doctor diagnostics, ThinkVantage Rescue & Recovery with Rapid RestoreLotus 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
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
Weight & dimensions4 differ
WidthDiffers178 mm309 mm
DepthDiffers450 mm359 mm
HeightDiffers430 mm85 mm
WeightDiffers12.5 kg8.5 kg
Other features1 differ
Security featuresDiffers-Hardfile I/O control -Parallel port I/O control -Power on password -Serial port I/O control -U-Bolt anchoring feature -Security slot (for attachment of optional cable lock) -Boot without keyboard or mouse -Boot sequence control -Diskette boot inhibit -Diskette I/O control -Configuration password-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

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.

More pcs/workstations comparisons

All pcs/workstations comparisons