Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M51, FR vs Lenovo ThinkCentre M55e Tower (9637M1G), BE

79specifications compared
33differ
46identical
17known for one product only

Key differences

Processor family
- ThinkCentre M51, FR:Intel® Pentium® 4
- ThinkCentre M55e Tower (9637M1G), BE:Intel® Core™2 Duo
Processor model
- ThinkCentre M51, FR:630
- ThinkCentre M55e Tower (9637M1G), BE:E6400
Processor cores
- ThinkCentre M51, FR:1
- ThinkCentre M55e Tower (9637M1G), BE:2
Processor frequency
- ThinkCentre M51, FR:3 GHz
- ThinkCentre M55e Tower (9637M1G), BE:2.13 GHz
Processor front side bus
- ThinkCentre M51, FR:800 MHz
- ThinkCentre M55e Tower (9637M1G), BE:1066 MHz
Processor lithography
- ThinkCentre M51, FR:90 nm
- ThinkCentre M55e Tower (9637M1G), BE:65 nm
Processor codename
- ThinkCentre M51, FR:Prescott
- ThinkCentre M55e Tower (9637M1G), BE:Conroe
Thermal Design Power (TDP)
- ThinkCentre M51, FR:84 W
- ThinkCentre M55e Tower (9637M1G), BE:65 W

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre M51, FR, ThinkCentre M55e Tower (9637M1G), BE
96 specifications	A Lenovo ThinkCentre M51, FR View product	B Lenovo ThinkCentre M55e Tower (9637M1G), BE View product
Processor13 differ
Processor familyDiffers	Intel® Pentium® 4	Intel® Core™2 Duo
Processor modelDiffers	630	E6400
Processor coresDiffers	1	2
Processor frequencyDiffers	3 GHz	2.13 GHz
Processor front side busDiffers	800 MHz	1066 MHz
Processor lithographyDiffers	90 nm	65 nm
Processor seriesDiffers	Intel Pentium 4 600 Series supporting Hyper-Threading Technology	Intel Core 2 Duo E6000 Series
Processor codenameDiffers	Prescott	Conroe
Thermal Design Power (TDP)Differs	84 W	65 W
TcaseDiffers	66.6 °C	61.4 °C
Number of processors installedKnown for one	Unknown — not stated by the source	1
Number of Processing Die TransistorsDiffers	169 M	167 M
Processing Die sizeDiffers	135 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	15	8
Memory2 differ
Internal memoryDiffers	0.5 GB	1 GB
Internal memory typeDiffers	DDR-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 1 GB
Memory slotsKnown for one	Unknown — not stated by the source	2x DIMM
Storage2 differ
Total storage capacityDiffers	40 GB	160 GB
Optical drive typeDiffers	CD-ROM	DVD-ROM
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
Diskette drive memoryKnown for one	1.44 MB	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 900	Intel® GMA 3000
Video adapter, busKnown for one	PCI Express	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet/Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	8	6
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slotsidentical
Expansion slotsKnown for one	Unknown — not stated by the source	1x PCI Express 16X 1x PCI Express 1X
Power1 differ
Power supplyDiffers	310 W	280 W
Power supply typeKnown for one	110~220V	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	Desktop	Tower
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Softwareidentical
Bundled softwareKnown for one	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	Unknown — not stated by the source
Processor special features7 differ
Embedded options availableDiffers	No	Yes
Idle StatesDiffers	No	Yes
Intel Enhanced Halt StateDiffers	No	Yes
Intel Virtualization Technology (VT-x)Differs	No	Yes
Processor ARK IDDiffers	27478	27249
Thermal Monitoring TechnologiesDiffers	No	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Audio1 differ
Audio systemDiffers	SoundMAX Cadenza	ADI 1986 A
Weight & dimensions3 differ
DepthDiffers	450 mm	440 mm
HeightDiffers	492 mm	402 mm
WeightDiffers	13.5 kg	10.9 kg
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
Security featuresKnown for one	-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	Unknown — not stated by the source
Optical driveidentical
CD read speedKnown for one	48x	Unknown — not stated by the source

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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