Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51p P4 660 3.6GHz vs Lenovo ThinkCentre M51

32specifications compared
5differ
27identical
8known for one product only

Key differences

The Lenovo ThinkCentre A51p P4 660 3.6GHz has 0.4 GHz more processor frequency than the Lenovo ThinkCentre M51 (3.6 GHz vs 3.2 GHz). Internal memory type: DDR2-SDRAM on the Lenovo ThinkCentre A51p P4 660 3.6GHz, DDR-SDRAM on the Lenovo ThinkCentre M51. Chassis type: Desktop on the Lenovo ThinkCentre A51p P4 660 3.6GHz, Tower on the Lenovo ThinkCentre M51.

Processor frequency
- ThinkCentre A51p P4 660 3.6GHz:3.6 GHz
- ThinkCentre M51:3.2 GHz
Internal memory type
- ThinkCentre A51p P4 660 3.6GHz:DDR2-SDRAM
- ThinkCentre M51:DDR-SDRAM
Chassis type
- ThinkCentre A51p P4 660 3.6GHz:Desktop
- ThinkCentre M51:Tower

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A51p P4 660 3.6GHz, ThinkCentre M51
40 specifications	A Lenovo ThinkCentre A51p P4 660 3.6GHz View product	B Lenovo ThinkCentre M51 View product
Processor1 differ
Processor frequencyDiffers	3.6 GHz	3.2 GHz
Memory1 differ
Internal memory typeDiffers	DDR2-SDRAM	DDR-SDRAM
Storageidentical
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Storage drive typeKnown for one	SATA	Unknown — not stated by the source
Graphicsidentical
Video adapter, busKnown for one	PCI Express	Unknown — not stated by the source
Ports & interfacesidentical
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
Poweridentical
Power supply typeKnown for one	110~220V	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	Desktop	Tower
Software1 differ
Bundled softwareDiffers	Lotus 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	Lotus Notes Stand-alone Client (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 and Recovery with Rapid Restore
Other features1 differ
Security featuresDiffers	-Diskette boot inhibit -Boot without keyboard or mouse -Configuration password -Boot sequence control -Power on password -Kensington Lock Standard Enabled -Parallel port I/O control -Diskette I/O control -Embedded Security Subsystem standard -Hard disk drive password -Hardfile I/O control -Secure Da	-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 one	Unknown — not stated by the source	Enterprise, 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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