Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51p Pentium 4 540 HT 3.2GHz vs Lenovo ThinkCentre M51

33specifications compared
7differ
26identical
10known for one product only

Key differences

Internal memory
- ThinkCentre A51p Pentium 4 540 HT 3.2GHz:0.25 GB
- ThinkCentre M51:0.5 GB
Internal memory type
- ThinkCentre A51p Pentium 4 540 HT 3.2GHz:DDR2-SDRAM
- ThinkCentre M51:DDR-SDRAM
Total storage capacity
- ThinkCentre A51p Pentium 4 540 HT 3.2GHz:160 GB
- ThinkCentre M51:80 GB
Discrete graphics card model
- ThinkCentre A51p Pentium 4 540 HT 3.2GHz:AMD Radeon X600 Pro
- ThinkCentre M51:Intel® GMA 900
Operating system installed
- ThinkCentre A51p Pentium 4 540 HT 3.2GHz:Windows XP Home Edition
- ThinkCentre M51:Windows XP Professional
Display included
- ThinkCentre A51p Pentium 4 540 HT 3.2GHz:Yes
- ThinkCentre M51:No

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A51p Pentium 4 540 HT 3.2GHz, ThinkCentre M51
43 specifications	A Lenovo ThinkCentre A51p Pentium 4 540 HT 3.2GHz View product	B Lenovo ThinkCentre M51 View product
Memory2 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR-SDRAM
Storage1 differ
Total storage capacityDiffers	160 GB	80 GB
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Graphics1 differ
Discrete graphics card modelDiffers	AMD Radeon X600 Pro	Intel® GMA 900
Video adapter, busKnown for one	PCI Express	Unknown — not stated by the source
Optical driveidentical
CD read speedKnown for one	48x	Unknown — not stated by the source
CD write speedKnown for one	48x	Unknown — not stated by the source
CD rewrite speedKnown for one	32x	Unknown — not stated by the source
Ports & interfacesidentical
Firewire (IEEE 1394) portsKnown for one	1	Unknown — not stated by the source
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
Software1 differ
Operating system installedDiffers	Windows XP Home Edition	Windows XP Professional
Display1 differ
Display includedDiffers	Yes	No
Other features1 differ
Security featuresDiffers	-Boot sequence control -Diskette I/O control -Diskette boot inhibit -Boot without keyboard or mouse -Configuration password -Secure Data Disposal -Serial port I/O control -Power on password -Parallel port I/O control -Embedded Security Subsystem standard -Hard disk drive password -Hardfile I/O contr	-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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