Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51 Intel® Pentium® 4 630 vs Lenovo ThinkCentre A53

80specifications compared
25differ
55identical
17known for one product only

Key differences

Processor family
- ThinkCentre A51 Intel® Pentium® 4 630:Intel® Pentium® 4
- ThinkCentre A53:Intel® Pentium® D
Processor model
- ThinkCentre A51 Intel® Pentium® 4 630:630
- ThinkCentre A53:820
Processor cores
- ThinkCentre A51 Intel® Pentium® 4 630:1
- ThinkCentre A53:2
Processor frequency
- ThinkCentre A51 Intel® Pentium® 4 630:3 GHz
- ThinkCentre A53:2.8 GHz
Processor codename
- ThinkCentre A51 Intel® Pentium® 4 630:Prescott
- ThinkCentre A53:Smithfield
Thermal Design Power (TDP)
- ThinkCentre A51 Intel® Pentium® 4 630:84 W
- ThinkCentre A53:95 W
Tcase
- ThinkCentre A51 Intel® Pentium® 4 630:66.6 °C
- ThinkCentre A53:64.1 °C
Number of Processing Die Transistors
- ThinkCentre A51 Intel® Pentium® 4 630:169 M
- ThinkCentre A53:230 M

Side by side

Differences highlightedShow differences only

Comparison of A51, ThinkCentre A53
97 specifications	A Lenovo ThinkCentre A51 Intel® Pentium® 4 630 Model A51 View product	B Lenovo ThinkCentre A53 View product
Processor11 differ
Processor familyDiffers	Intel® Pentium® 4	Intel® Pentium® D
Processor modelDiffers	630	820
Processor coresDiffers	1	2
Processor frequencyDiffers	3 GHz	2.8 GHz
Processor seriesDiffers	Intel Pentium 4 600 Series supporting Hyper-Threading Technology	Intel Pentium D 800 Series
Processor codenameDiffers	Prescott	Smithfield
Thermal Design Power (TDP)Differs	84 W	95 W
TcaseDiffers	66.6 °C	64.1 °C
Number of Processing Die TransistorsDiffers	169 M	230 M
Processing Die sizeDiffers	135 mm²	206 mm²
CPU multiplier (bus/core ratio)Differs	15	14
Processor core voltage (AC)Known for one	Unknown — not stated by the source	1.25 - 1.40 V
Memory1 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Memory slotsKnown for one	Unknown — not stated by the source	2x DIMM
Storageidentical
Storage drive typeKnown for one	SATA	Unknown — not stated by the source
Diskette drive memoryKnown for one	1.44 MB	Unknown — not stated by the source
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 900	AMD Radeon Xpress X300
Video adapter resolutionKnown for one	2048x1536 16777216 colors	Unknown — not stated by the source
Video adapter, busKnown for one	PCI Express	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet	Ethernet/Fast Ethernet/Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantityKnown for one	6	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
TV-outKnown for one	No	Unknown — not stated by the source
Modem (RJ-11) portsKnown for one	0	Unknown — not stated by the source
USB 1.1 ports quantityKnown for one	0	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	310 W	220 W
Designidentical
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	IBM
Softwareidentical
Bundled softwareKnown for one	Unknown — not stated by the source	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
Processor special features5 differ
Enhanced Intel SpeedStep TechnologyDiffers	Yes	No
Idle StatesDiffers	No	Yes
Intel Enhanced Halt StateDiffers	No	Yes
Processor ARK IDDiffers	27478	27512
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	32 bit
Audio1 differ
Audio systemDiffers	SoundMAX Cadenza	ADI 1986 A
Weight & dimensions4 differ
WidthDiffers	442 mm	331 mm
DepthDiffers	401 mm	412 mm
HeightDiffers	146 mm	108 mm
WeightDiffers	14 kg	9.4 kg
Other featuresidentical
Security featuresKnown for one	-Parallel port I/O control -Configuration password -Diskette boot inhibit -Diskette I/O control -Hardfile I/O control -Boot sequence control -Boot without keyboard or mouse -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control -U-Bolt anchoring feature	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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