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 ThinkCentre A51p P4 520 2.8GHz vs Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US

Add a product
  • 84specifications compared
  • 19differ
  • 65identical
  • 4known for one product only

Key differences

The Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US has 110 more processor model than the Lenovo ThinkCentre A51p P4 520 2.8GHz (630 vs 520). The Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US has 0.2 GHz more processor frequency than the Lenovo ThinkCentre A51p P4 520 2.8GHz (3 GHz vs 2.8 GHz). The Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US has 1 MB more processor cache than the Lenovo ThinkCentre A51p P4 520 2.8GHz (2 MB vs 1 MB). Only the Lenovo ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP US has enhanced Intel SpeedStep Technology. Only the Lenovo ThinkCentre A51p P4 520 2.8GHz has thermal Monitoring Technologies.

  • Processor model
    • 520
    • 630
  • Processor frequency
    • 2.8 GHz
    • 3 GHz
  • Processor cache
    • 1 MB
    • 2 MB
  • Processor operating modes
    • 32-bit
    • 64-bit
  • Tcase
    • 67.7 °C
    • 66.6 °C
  • Number of Processing Die Transistors
    • 125 M
    • 169 M
  • Processing Die size
    • 112 mm²
    • 135 mm²
  • CPU multiplier (bus/core ratio)
    • 12
    • 15

Side by side

Differences highlightedShow differences only
88 specifications
A

Lenovo

ThinkCentre A51p P4 520 2.8GHzView product
B

Lenovo

ThinkCentre M51 P4 3.0 (630) HT 512/40G/CD/LAN/WXP USView product
Processor8 differ
Processor modelDiffers520630
Processor frequencyDiffers2.8 GHz3 GHz
Processor cacheDiffers1 MB2 MB
Processor operating modesDiffers32-bit64-bit
TcaseDiffers67.7 °C66.6 °C
TjunctionKnown for one100 °C
Number of Processing Die TransistorsDiffers125 M169 M
Processing Die sizeDiffers112 mm²135 mm²
CPU multiplier (bus/core ratio)Differs1215
Processor core voltage (AC)Known for one0.95 - 1.30 V
Processor seriesKnown for oneIntel Pentium 4 600 Series supporting Hyper-Threading Technology
Memory2 differ
Internal memoryDiffers0.25 GB0.5 GB
Internal memory typeDiffersDDR2-SDRAMDDR-SDRAM
Processor special features4 differ
Enhanced Intel SpeedStep TechnologyDiffersNoYes
Processor ARK IDDiffers2746027478
Processor package sizeDiffers37.5 mm37.5 x 37.5 mm
Thermal Monitoring TechnologiesDiffersYesNo
Weight & dimensions4 differ
WidthDiffers442 mm175 mm
DepthDiffers401 mm450 mm
HeightDiffers146 mm492 mm
WeightDiffers14 kg13.5 kg
Other features1 differ
Security featuresDiffers-Serial port I/O control -Secure Data Disposal -Parallel port I/O control -Power on password -Hard disk drive password -Hardfile I/O control -Kensington Lock Standard Enabled -Diskette I/O control -Embedded Security Subsystem standard -Diskette boot inhibit -Boot without keyboard or mouse -Configura-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.

More pcs/workstations comparisons

All pcs/workstations comparisons