Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M55p Tower (8811DEG), SP vs Lenovo ThinkCentre M57 Small Desktop (9181-A1G), SE

82specifications compared
22differ
60identical
14known for one product only

Key differences

Processor model
- ThinkCentre M55p Tower (8811DEG), SP:E6400
- ThinkCentre M57 Small Desktop (9181-A1G), SE:E6550
Processor frequency
- ThinkCentre M55p Tower (8811DEG), SP:2.13 GHz
- ThinkCentre M57 Small Desktop (9181-A1G), SE:2.33 GHz
Processor cache
- ThinkCentre M55p Tower (8811DEG), SP:2 MB
- ThinkCentre M57 Small Desktop (9181-A1G), SE:4 MB
Processor front side bus
- ThinkCentre M55p Tower (8811DEG), SP:1066 MHz
- ThinkCentre M57 Small Desktop (9181-A1G), SE:1333 MHz
Tcase
- ThinkCentre M55p Tower (8811DEG), SP:61.4 °C
- ThinkCentre M57 Small Desktop (9181-A1G), SE:72 °C
Number of Processing Die Transistors
- ThinkCentre M55p Tower (8811DEG), SP:167 M
- ThinkCentre M57 Small Desktop (9181-A1G), SE:291 M
Processing Die size
- ThinkCentre M55p Tower (8811DEG), SP:111 mm²
- ThinkCentre M57 Small Desktop (9181-A1G), SE:143 mm²
CPU multiplier (bus/core ratio)
- ThinkCentre M55p Tower (8811DEG), SP:8
- ThinkCentre M57 Small Desktop (9181-A1G), SE:7

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre M55p Tower (8811DEG), SP, ThinkCentre M57 Small Desktop (9181-A1G), SE
96 specifications	A Lenovo ThinkCentre M55p Tower (8811DEG), SP View product	B Lenovo ThinkCentre M57 Small Desktop (9181-A1G), SE View product
Processor8 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	E6400	E6550
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.13 GHz	2.33 GHz
Processor cacheDiffers	2 MB	4 MB
Processor cache type	L2	L2
Processor front side busDiffers	1066 MHz	1333 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core 2 Duo E6000 Series	Intel Core 2 Duo E6000 Series
Processor codename	Conroe	Conroe
Thermal Design Power (TDP)	65 W	65 W
TcaseDiffers	61.4 °C	72 °C
Number of processors installed	1	1
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	167 M	291 M
Processing Die sizeDiffers	111 mm²	143 mm²
CPU multiplier (bus/core ratio)Differs	8	7
SteppingKnown for one	Unknown — not stated by the source	G0
ECC supported by processor	No	No
Memoryidentical
Internal memory	1 GB	1 GB
Maximum internal memoryKnown for one	Unknown — not stated by the source	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)	1 x 1 GB	1 x 1 GB
Memory slotsKnown for one	Unknown — not stated by the source	4x DIMM
Storage1 differ
Total storage capacityDiffers	80 GB	160 GB
Optical drive type	DVD-ROM	DVD-ROM
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 3000	Intel® GMA X3100
Performanceidentical
Product type	PC	PC
Networkidentical
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	10	6
Ethernet LAN (RJ-45) ports	1	1
Headphone outputsKnown for one	Unknown — not stated by the source	1
Line-out	Yes	Yes
Line-in	Yes	Yes
Microphone inKnown for one	Unknown — not stated by the source	Yes
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantityKnown for one	Unknown — not stated by the source	1
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Parallel ports quantity	1	1
Expansion slots1 differ
Expansion slotsDiffers	1x PCI Express 1X 1x PCI Express 16X 2x PCI	1x PCI Express 16X LP 1x PCI LP
Poweridentical
Power requirementsKnown for one	Unknown — not stated by the source	115-230V, 50/60Hz
Power availabilityKnown for one	Unknown — not stated by the source	280 W
Power supplyKnown for one	310 W	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	Tower	Small 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
Software1 differ
Operating system installedDiffers	Windows XP Professional	Windows Vista Business
Bundled softwareKnown for one	Unknown — not stated by the source	Yes
Displayidentical
Display included	No	No
Processor special features3 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 TechnologyDiffers	No	Yes
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	30783
Processor codeKnown for one	Unknown — not stated by the source	SLA9X
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
Audio1 differ
Audio systemDiffers	ADI 1983 HD	AD1882
Weight & dimensions4 differ
WidthDiffers	178 mm	310 mm
DepthDiffers	450 mm	358 mm
HeightDiffers	432 mm	875 mm
WeightDiffers	12.5 kg	7.42 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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