Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A53 vs Lenovo ThinkCentre M55

79specifications compared
26differ
53identical
15known for one product only

Key differences

Processor family
- ThinkCentre A53:Intel® Pentium® D
- ThinkCentre M55:Intel® Core™2 Duo
Processor model
- ThinkCentre A53:820
- ThinkCentre M55:E6300
Processor frequency
- ThinkCentre A53:2.8 GHz
- ThinkCentre M55:1.86 GHz
Processor front side bus
- ThinkCentre A53:800 MHz
- ThinkCentre M55:1066 MHz
Processor lithography
- ThinkCentre A53:90 nm
- ThinkCentre M55:65 nm
Processor codename
- ThinkCentre A53:Smithfield
- ThinkCentre M55:Conroe
Thermal Design Power (TDP)
- ThinkCentre A53:95 W
- ThinkCentre M55:65 W
Tcase
- ThinkCentre A53:64.1 °C
- ThinkCentre M55:61.4 °C

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A53, ThinkCentre M55
94 specifications	A Lenovo ThinkCentre A53 View product	B Lenovo ThinkCentre M55 View product
Processor11 differ
Processor familyDiffers	Intel® Pentium® D	Intel® Core™2 Duo
Processor modelDiffers	820	E6300
Processor frequencyDiffers	2.8 GHz	1.86 GHz
Processor front side busDiffers	800 MHz	1066 MHz
Processor lithographyDiffers	90 nm	65 nm
Processor seriesKnown for one	Intel Pentium D 800 Series	Unknown — not stated by the source
Processor codenameDiffers	Smithfield	Conroe
Thermal Design Power (TDP)Differs	95 W	65 W
TcaseDiffers	64.1 °C	61.4 °C
Number of Processing Die TransistorsDiffers	230 M	167 M
Processing Die sizeDiffers	206 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	14	7
Processor core voltage (AC)Known for one	1.25 - 1.40 V	Unknown — not stated by the source
SteppingKnown for one	Unknown — not stated by the source	R0
Memory2 differ
Internal memoryDiffers	0.5 GB	1 GB
Maximum internal memoryDiffers	4 GB	8 GB
Memory slotsKnown for one	2x DIMM	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelDiffers	AMD Radeon Xpress X300	Intel® GMA 3000
Ports & interfacesidentical
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
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	10
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
Power1 differ
Power supplyDiffers	220 W	310 W
Design1 differ
Chassis typeDiffers	Desktop	Tower
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	IBM	Unknown — not stated by the source
Software1 differ
Bundled softwareDiffers	Adobe Acrobat Reader, Diskeeper Lite from Diskeeper, Google Desktop, Google Toolbar, Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium edition (license), PC Doctor diagnostics, Picasa from Google, Symantec Client Security (OEM edition) with 90 days of virus definitions updates, T	Adobe Acrobat Reader, Diskeeper Lite, Google Desktop, Google Toolbar, Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium edition (license), PC Doctor diagnostics, Picasa, Sun JRE, Symantec Client Security (OEM), ThinkVantage Client Security Software, ThinkVantage Productivity Cent
Processor special features4 differ
Enhanced Intel SpeedStep TechnologyDiffers	No	Yes
Intel Virtualization Technology (VT-x)Differs	No	Yes
Physical Address Extension (PAE)Known for one	32 bit	Unknown — not stated by the source
Processor ARK IDDiffers	27512	27248
Thermal Monitoring TechnologiesDiffers	No	Yes
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	331 mm	178 mm
DepthDiffers	412 mm	450 mm
HeightDiffers	108 mm	432 mm
WeightDiffers	9.4 kg	12.5 kg
Other featuresidentical
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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