Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M55e Intel® Core™2 Duo E6400 vs Lenovo ThinkCentre M55 Small Desktop, DE

84specifications compared
15differ
69identical
9known for one product only

Key differences

Processor model
- ThinkCentre M55e Intel® Core™2 Duo E6400:E6400
- ThinkCentre M55 Small Desktop, DE:E6300
Processor frequency
- ThinkCentre M55e Intel® Core™2 Duo E6400:2.13 GHz
- ThinkCentre M55 Small Desktop, DE:1.86 GHz
CPU multiplier (bus/core ratio)
- ThinkCentre M55e Intel® Core™2 Duo E6400:8
- ThinkCentre M55 Small Desktop, DE:7
Total storage capacity
- ThinkCentre M55e Intel® Core™2 Duo E6400:160 GB
- ThinkCentre M55 Small Desktop, DE:80 GB
USB 2.0 ports quantity
- ThinkCentre M55e Intel® Core™2 Duo E6400:6
- ThinkCentre M55 Small Desktop, DE:8
Power supply
- ThinkCentre M55e Intel® Core™2 Duo E6400:280 W
- ThinkCentre M55 Small Desktop, DE:225 W
Chassis type
- ThinkCentre M55e Intel® Core™2 Duo E6400:Tower
- ThinkCentre M55 Small Desktop, DE:Desktop
Embedded options available
- ThinkCentre M55e Intel® Core™2 Duo E6400:Yes
- ThinkCentre M55 Small Desktop, DE:No

Side by side

Differences highlightedShow differences only

Comparison of M55e, ThinkCentre M55 Small Desktop, DE
93 specifications	A Lenovo ThinkCentre M55e Intel® Core™2 Duo E6400 Model M55e View product	B Lenovo ThinkCentre M55 Small Desktop, DE View product
Processor3 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	E6400	E6300
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.13 GHz	1.86 GHz
Processor cache	2 MB	2 MB
Processor cache type	L2	L2
Processor front side bus	1066 MHz	1066 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor seriesKnown for one	Intel Core 2 Duo E6000 Series	Unknown — not stated by the source
Processor codename	Conroe	Conroe
Thermal Design Power (TDP)	65 W	65 W
Tcase	61.4 °C	61.4 °C
Number of processors installed	1	1
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die Transistors	167 M	167 M
Processing Die size	111 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	8	7
ECC supported by processor	No	No
SteppingKnown for one	Unknown — not stated by the source	R0
Memoryidentical
Internal memory	1 GB	1 GB
Maximum internal memory	4 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)	1 x 1 GB	1 x 1 GB
Memory slots	2x DIMM	2x DIMM
Storage1 differ
Total storage capacityDiffers	160 GB	80 GB
Optical drive type	DVD-ROM	DVD-ROM
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Graphicsidentical
Discrete graphics card model	Intel® GMA 3000	Intel® GMA 3000
Performanceidentical
Product type	PC	PC
Networkidentical
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	6	8
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 quantityKnown for one	2	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Parallel ports quantity	1	1
Expansion slots1 differ
Expansion slotsDiffers	1x PCI Express 16X 1x PCI Express 1X	1x PCI Express 1X 1x PCI
Power1 differ
Power supplyDiffers	280 W	225 W
Design1 differ
Chassis typeDiffers	Tower	Desktop
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled softwareKnown for one	Unknown — not stated by the source	Adobe Acrobat Reader Diskeeper Lite Google ThinkVantage
Displayidentical
Display included	No	No
Processor special features2 differ
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	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 State	Yes	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)	Yes	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	27249	27248
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	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
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Processor codeKnown for one	Unknown — not stated by the source	SLGW2
Audio1 differ
Audio systemDiffers	ADI 1986 A	ADI 1983 HD
Weight & dimensions4 differ
WidthDiffers	175 mm	309 mm
DepthDiffers	440 mm	359 mm
HeightDiffers	402 mm	87.5 mm
WeightDiffers	10.9 kg	8.3 kg
Packaging contentidentical
Mouse included	Yes	Yes
Other featuresidentical
Intel segment tagging	Enterprise, Professional	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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