Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A55 870576G, BE vs Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE

81specifications compared
11differ
70identical
15known for one product only

Key differences

Internal memory
- ThinkCentre A55 870576G, BE:0.5 GB
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE:1 GB
Memory layout (slots x size)
- ThinkCentre A55 870576G, BE:1 x 0.5 GB
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE:1 x 1 GB
Total storage capacity
- ThinkCentre A55 870576G, BE:80 GB
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE:160 GB
Optical drive type
- ThinkCentre A55 870576G, BE:DVD-ROM
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE:DVD-RW
USB 2.0 ports quantity
- ThinkCentre A55 870576G, BE:6
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE:8
Operating system installed
- ThinkCentre A55 870576G, BE:Windows XP Professional
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE:Windows Vista Business
Audio system
- ThinkCentre A55 870576G, BE:ADI 1986 A
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE:ADI 1983 HD
Width
- ThinkCentre A55 870576G, BE:175 mm
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE:275 mm

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A55 870576G, BE, ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE
96 specifications	A Lenovo ThinkCentre A55 870576G, BE View product	B Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G), BE View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Pentium® D	Intel® Pentium® D
Processor model	925	925
Processor cores	2	2
Processor threads	2	2
Processor frequency	3 GHz	3 GHz
Processor cache	4 MB	4 MB
Processor cache type	L2	L2
Processor front side bus	800 MHz	800 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 Pentium D 900 Series	Intel Pentium D 900 Series
Processor codename	Presler	Presler
Thermal Design Power (TDP)	95 W	95 W
Tcase	63.4 °C	63.4 °C
Number of processors installed	1	1
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die Transistors	376 M	376 M
Processing Die size	162 mm²	162 mm²
CPU multiplier (bus/core ratio)	15	15
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	0.5 GB	1 GB
Maximum internal memory	4 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Differs	1 x 0.5 GB	1 x 1 GB
Memory slotsKnown for one	2x DIMM	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	80 GB	160 GB
Optical drive typeDiffers	DVD-ROM	DVD-RW
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Graphicsidentical
Discrete graphics card model	Intel® GMA 3000	Intel® GMA 3000
Maximum graphics card memoryKnown for one	0.128 GB	Unknown — not stated by the source
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 slotsidentical
Expansion slotsKnown for one	1x PCI Express 1X 1x PCI Express 16X 2x PCI	Unknown — not stated by the source
Poweridentical
Power supplyKnown for one	250 W	Unknown — not stated by the source
Power supply input voltageKnown for one	110/220 V	Unknown — not stated by the source
Power supply input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Power availabilityKnown for one	Unknown — not stated by the source	225 W
Designidentical
Chassis typeKnown for one	Tower	Unknown — not stated by the source
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
Software2 differ
Operating system installedDiffers	Windows XP Professional	Windows Vista Business
Bundled softwareDiffers	Adobe Acrobat Reader Diskeeper Lite Google Desktop Google Toolbar Google Picasa	Yes
Displayidentical
Display included	No	No
Processor special featuresidentical
Embedded options available	No	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)	No	No
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
Physical Address Extension (PAE)	Yes	Yes
Processor ARK ID	27517	27517
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring Technologies	No	No
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 1986 A	ADI 1983 HD
Weight & dimensions3 differ
WidthDiffers	175 mm	275 mm
DepthDiffers	440 mm	87.5 mm
HeightDiffers	402 mm	275 mm
WeightKnown for one	Unknown — not stated by the source	6.4 kg
Packaging contentidentical
Mouse included	Yes	Yes
Other featuresidentical
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Intel segment taggingKnown for one	Unknown — not stated by the source	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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