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 manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium® 4	Intel® Core™2 Duo
Processor modelDiffers	630	E6400
Processor coresDiffers	1	2
Processor threads	2	2
Processor frequencyDiffers	3 GHz	2.13 GHz
Processor cache	2 MB	2 MB
Processor cache type	L2	L2
Processor front side busDiffers	800 MHz	1066 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithographyDiffers	90 nm	65 nm
Processor operating modes	64-bit	64-bit
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
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	169 M	167 M
Processing Die sizeDiffers	135 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	15	8
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	0.5 GB	1 GB
Maximum internal memory	4 GB	4 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
Performanceidentical
Product type	PC	PC
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet/Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	8	6
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantity	2	2
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Parallel ports quantity	1	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
Operating system installed	Windows XP Professional	Windows XP Professional
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
Displayidentical
Display included	No	No
Processor special features7 differ
Embedded options availableDiffers	No	Yes
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle StatesDiffers	No	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt StateDiffers	No	Yes
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)Differs	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	No	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	27478	27249
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring TechnologiesDiffers	No	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Quick Sync Video Technology	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Audio1 differ
Audio systemDiffers	SoundMAX Cadenza	ADI 1986 A
Weight & dimensions3 differ
Width	175 mm	175 mm
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
Intel segment tagging	Enterprise, Professional	Enterprise, Professional
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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