Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M51 Intel® Pentium® 4 vs Lenovo ThinkCentre M55 Small Desktop - 8808H3G, BE

31specifications compared
15differ
16identical
65known for one product only

Key differences

Processor family
- ThinkCentre M51 Intel® Pentium® 4:Intel® Pentium® 4
- ThinkCentre M55 Small Desktop - 8808H3G, BE:Intel® Pentium® D
Processor frequency
- ThinkCentre M51 Intel® Pentium® 4:3.2 GHz
- ThinkCentre M55 Small Desktop - 8808H3G, BE:3 GHz
Internal memory
- ThinkCentre M51 Intel® Pentium® 4:0.5 GB
- ThinkCentre M55 Small Desktop - 8808H3G, BE:1 GB
Internal memory type
- ThinkCentre M51 Intel® Pentium® 4:DDR-SDRAM
- ThinkCentre M55 Small Desktop - 8808H3G, BE:DDR2-SDRAM
Total storage capacity
- ThinkCentre M51 Intel® Pentium® 4:40 GB
- ThinkCentre M55 Small Desktop - 8808H3G, BE:80 GB
Optical drive type
- ThinkCentre M51 Intel® Pentium® 4:CD-ROM
- ThinkCentre M55 Small Desktop - 8808H3G, BE:DVD-ROM
Discrete graphics card model
- ThinkCentre M51 Intel® Pentium® 4:Intel® GMA 900
- ThinkCentre M55 Small Desktop - 8808H3G, BE:Intel® GMA 3000
Power supply
- ThinkCentre M51 Intel® Pentium® 4:310 W
- ThinkCentre M55 Small Desktop - 8808H3G, BE:225 W

Side by side

Differences highlightedShow differences only

Comparison of M51, ThinkCentre M55 Small Desktop - 8808H3G, BE
96 specifications	A Lenovo ThinkCentre M51 Intel® Pentium® 4 Model M51 View product	B Lenovo ThinkCentre M55 Small Desktop - 8808H3G, BE View product
Processor2 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium® 4	Intel® Pentium® D
Processor modelKnown for one	Unknown — not stated by the source	925
Processor coresKnown for one	Unknown — not stated by the source	2
Processor threadsKnown for one	Unknown — not stated by the source	2
Processor frequencyDiffers	3.2 GHz	3 GHz
Processor cacheKnown for one	Unknown — not stated by the source	4 MB
Processor cache typeKnown for one	Unknown — not stated by the source	L2
Processor front side bus	800 MHz	800 MHz
Bus typeKnown for one	Unknown — not stated by the source	FSB
FSB ParityKnown for one	Unknown — not stated by the source	No
Processor lithographyKnown for one	Unknown — not stated by the source	65 nm
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Pentium D 900 Series
Processor codenameKnown for one	Unknown — not stated by the source	Presler
Thermal Design Power (TDP)Known for one	Unknown — not stated by the source	95 W
TcaseKnown for one	Unknown — not stated by the source	63.4 °C
Number of processors installedKnown for one	Unknown — not stated by the source	1
Processor socketKnown for one	Unknown — not stated by the source	LGA 775 (Socket T)
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	376 M
Processing Die sizeKnown for one	Unknown — not stated by the source	162 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	15
ECC supported by processorKnown for one	Unknown — not stated by the source	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	80 GB
Optical drive typeDiffers	CD-ROM	DVD-ROM
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
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
Performanceidentical
Product type	PC	PC
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet/Gigabit Ethernet	Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	8	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-out	Yes	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
Parallel ports quantity	1	1
PS/2 ports quantityKnown for one	2	Unknown — not stated by the source
Expansion slotsidentical
Expansion slotsKnown for one	Unknown — not stated by the source	1x PCI Express 1X 1x PCI
Power1 differ
Power supplyDiffers	310 W	225 W
Design1 differ
Chassis typeDiffers	Tower	SFF
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), Norton AntiVirus 2004, PC Doctor diagnostics, Access Program, ThinkVantage Client Security Solution, ThinkVantage Rescue and Recovery with Rapid Restore, IBM Director Agent (web deliverable)	Unknown — not stated by the source
Displayidentical
Display included	No	No
Processor special featuresidentical
Embedded options availableKnown for one	Unknown — not stated by the source	No
Enhanced Intel SpeedStep TechnologyKnown for one	Unknown — not stated by the source	Yes
Execute Disable BitKnown for one	Unknown — not stated by the source	Yes
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel 64Known for one	Unknown — not stated by the source	Yes
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	Yes
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	No
Intel Fast Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	No
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology (VT-x)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Unknown — not stated by the source	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Insider™Known for one	Unknown — not stated by the source	No
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor ARK IDKnown for one	Unknown — not stated by the source	27517
Processor package sizeKnown for one	Unknown — not stated by the source	37.5 x 37.5 mm
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	No
Intel® Quick Sync Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Audio1 differ
Audio systemDiffers	SoundMAX Cadenza	ADI 1983 HD
Weight & dimensions4 differ
WidthDiffers	175 mm	310 mm
DepthDiffers	450 mm	358 mm
HeightDiffers	492 mm	87.5 mm
WeightDiffers	13.5 kg	8.5 kg
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
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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