Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A55 Tower 92657JG, CZ vs Lenovo ThinkCentre M55 Ultra Small Desktop, CZ

81specifications compared
15differ
66identical
9known for one product only

Key differences

The Lenovo ThinkCentre A55 Tower 92657JG, CZ has 10 more processor model than the Lenovo ThinkCentre M55 Ultra Small Desktop, CZ (925 vs 915). The Lenovo ThinkCentre A55 Tower 92657JG, CZ has 0.2 GHz more processor frequency than the Lenovo ThinkCentre M55 Ultra Small Desktop, CZ (3 GHz vs 2.8 GHz). The Lenovo ThinkCentre A55 Tower 92657JG, CZ has 1 more CPU multiplier (bus/core ratio) than the Lenovo ThinkCentre M55 Ultra Small Desktop, CZ (15 vs 14). Optical drive type: DVD±RW on the Lenovo ThinkCentre A55 Tower 92657JG, CZ, DVD-ROM on the Lenovo ThinkCentre M55 Ultra Small Desktop, CZ. Chassis type: Tower on the Lenovo ThinkCentre A55 Tower 92657JG, CZ, SFF on the Lenovo ThinkCentre M55 Ultra Small Desktop, CZ.

Processor model
- ThinkCentre A55 Tower 92657JG, CZ:925
- ThinkCentre M55 Ultra Small Desktop, CZ:915
Processor frequency
- ThinkCentre A55 Tower 92657JG, CZ:3 GHz
- ThinkCentre M55 Ultra Small Desktop, CZ:2.8 GHz
CPU multiplier (bus/core ratio)
- ThinkCentre A55 Tower 92657JG, CZ:15
- ThinkCentre M55 Ultra Small Desktop, CZ:14
Optical drive type
- ThinkCentre A55 Tower 92657JG, CZ:DVD±RW
- ThinkCentre M55 Ultra Small Desktop, CZ:DVD-ROM
USB 2.0 ports quantity
- ThinkCentre A55 Tower 92657JG, CZ:6
- ThinkCentre M55 Ultra Small Desktop, CZ:8
Power supply
- ThinkCentre A55 Tower 92657JG, CZ:280 W
- ThinkCentre M55 Ultra Small Desktop, CZ:225 W
Chassis type
- ThinkCentre A55 Tower 92657JG, CZ:Tower
- ThinkCentre M55 Ultra Small Desktop, CZ:SFF
Physical Address Extension (PAE)
- ThinkCentre A55 Tower 92657JG, CZ:Yes
- ThinkCentre M55 Ultra Small Desktop, CZ:32 bit

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A55 Tower 92657JG, CZ, ThinkCentre M55 Ultra Small Desktop, CZ
90 specifications	A Lenovo ThinkCentre A55 Tower 92657JG, CZ View product	B Lenovo ThinkCentre M55 Ultra Small Desktop, CZ View product
Processor3 differ
Processor modelDiffers	925	915
Processor frequencyDiffers	3 GHz	2.8 GHz
CPU multiplier (bus/core ratio)Differs	15	14
Memoryidentical
Maximum internal memoryKnown for one	Unknown — not stated by the source	4 GB
Memory slotsKnown for one	2x DIMM	Unknown — not stated by the source
Storage1 differ
Optical drive typeDiffers	DVD±RW	DVD-ROM
Graphicsidentical
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® GMA 3000
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	6	8
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
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
Power1 differ
Power supplyDiffers	280 W	225 W
Design1 differ
Chassis typeDiffers	Tower	SFF
Software1 differ
Bundled softwareDiffers	Adobe Acrobat Reader, Diskeeper Lite, Lotus, Google, ThinkVantage	Adobe Acrobat Reader Diskeeper 9.0 Home Edition Picasa (Google) Microsoft Office Hybrid Pro Image 2007
Processor special features2 differ
Physical Address Extension (PAE)Differs	Yes	32 bit
Processor ARK IDDiffers	27517	27515
Audio1 differ
Audio systemDiffers	ADI 1986 A	ADI 1983 HD
Weight & dimensions4 differ
WidthDiffers	175 mm	270 mm
DepthDiffers	440 mm	89 mm
HeightDiffers	402 mm	276 mm
WeightDiffers	10.9 kg	6.4 kg
Other featuresidentical
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional
Expansion slotsidentical
Expansion slotsKnown for one	1x PCI Express 1X 1x PCI Express 16X 2x PCI	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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