Product comparison · 2 pcs/workstations

HP Compaq dc5100 microtower pc (EC956ET) vs Lenovo ThinkCentre A51 Pentium 4 531 HT 3.0GHz

29specifications compared
10differ
19identical
73known for one product only

Key differences

Internal memory
- Compaq dc5100 microtower pc (EC956ET):0.5 GB
- ThinkCentre A51 Pentium 4 531 HT 3.0GHz:0.25 GB
Power supply
- Compaq dc5100 microtower pc (EC956ET):300 W
- ThinkCentre A51 Pentium 4 531 HT 3.0GHz:200 W
Audio system
- Compaq dc5100 microtower pc (EC956ET):Integrated
- ThinkCentre A51 Pentium 4 531 HT 3.0GHz:SoundMAX Cadenza
Width
- Compaq dc5100 microtower pc (EC956ET):175 mm
- ThinkCentre A51 Pentium 4 531 HT 3.0GHz:276 mm
Depth
- Compaq dc5100 microtower pc (EC956ET):420 mm
- ThinkCentre A51 Pentium 4 531 HT 3.0GHz:270 mm
Height
- Compaq dc5100 microtower pc (EC956ET):366 mm
- ThinkCentre A51 Pentium 4 531 HT 3.0GHz:89 mm
Weight
- Compaq dc5100 microtower pc (EC956ET):11 kg
- ThinkCentre A51 Pentium 4 531 HT 3.0GHz:6.4 kg

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc5100 microtower pc (EC956ET), ThinkCentre A51 Pentium 4 531 HT 3.0GHz
102 specifications	A HP Compaq dc5100 microtower pc (EC956ET)View product	B Lenovo ThinkCentre A51 Pentium 4 531 HT 3.0GHz View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Pentium® 4	Intel® Pentium® 4
Processor modelKnown for one	630	Unknown — not stated by the source
Processor coresKnown for one	1	Unknown — not stated by the source
Processor threadsKnown for one	2	Unknown — not stated by the source
Processor frequency	3 GHz	3 GHz
Processor cacheKnown for one	2 MB	Unknown — not stated by the source
Processor cache typeKnown for one	L2	Unknown — not stated by the source
Processor front side bus	800 MHz	800 MHz
Bus typeKnown for one	FSB	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
Processor lithographyKnown for one	90 nm	Unknown — not stated by the source
Processor operating modesKnown for one	64-bit	Unknown — not stated by the source
Processor seriesKnown for one	Intel Pentium 4 600 Series supporting Hyper-Threading Technology	Unknown — not stated by the source
Processor codenameKnown for one	Prescott	Unknown — not stated by the source
Thermal Design Power (TDP)Known for one	84 W	Unknown — not stated by the source
TcaseKnown for one	66.6 °C	Unknown — not stated by the source
Number of processors installedKnown for one	1	Unknown — not stated by the source
Processor socketKnown for one	LGA 775 (Socket T)	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	169 M	Unknown — not stated by the source
Processing Die sizeKnown for one	135 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	15	Unknown — not stated by the source
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Processor technologyKnown for one	HT	Unknown — not stated by the source
Memory1 differ
Internal memoryDiffers	0.5 GB	0.25 GB
Maximum internal memory	4 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory slotsKnown for one	4x DIMM	Unknown — not stated by the source
Storageidentical
Total storage capacity	80 GB	80 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Storage drive controllerKnown for one	SMART III Serial ATA, 1.5GB/s	Unknown — not stated by the source
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-ROM
Graphics1 differ
Graphics card RAMDACKnown for one	400 MHz	Unknown — not stated by the source
Maximum graphics card memoryKnown for one	0.128 GB	Unknown — not stated by the source
Video adapter resolutionDiffers	1920x1440@100Hz; 2048x1536@75Hz	2048x1536 16777216 colors
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® GMA 900
Video adapter, busKnown for one	Unknown — not stated by the source	PCI Express
Performanceidentical
Product type	PC	PC
Network1 differ
Networking featuresDiffers	Gigabit Ethernet	Ethernet/Fast Ethernet/Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	6	6
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 quantity	2	2
Serial ports quantity	1	1
Parallel ports quantity	1	1
TV-outKnown for one	Unknown — not stated by the source	No
Expansion slotsidentical
Expansion slotsKnown for one	PCI express x1	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	300 W	200 W
Designidentical
External drive baysKnown for one	2x 5.25"; 2x 3.5"	Unknown — not stated by the source
Internal drive baysKnown for one	2x 3.5"	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Software1 differ
Compatible operating systemsKnown for one	Microsoft Windows XP Professional	Unknown — not stated by the source
Bundled softwareDiffers	Microsoft Office SBE 2003 Norton Antivirus 2005	Access Program, ThinkVantage Access Connections, ThinkVantage Rescue and Recovery with Rapid Restore, Norton AntiVirus 2004 with 90 days of virus definition upgrades, PC Doctor diagnostics
Operating system installedKnown for one	Unknown — not stated by the source	Windows XP Professional
Displayidentical
Display included	No	No
Processor special featuresidentical
Embedded options availableKnown for one	No	Unknown — not stated by the source
Enhanced Intel SpeedStep TechnologyKnown for one	Yes	Unknown — not stated by the source
Execute Disable BitKnown for one	Yes	Unknown — not stated by the source
Idle StatesKnown for one	No	Unknown — not stated by the source
Intel 64Known for one	Yes	Unknown — not stated by the source
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based SwitchingKnown for one	No	Unknown — not stated by the source
Intel Dual Display Capable TechnologyKnown for one	No	Unknown — not stated by the source
Intel Enhanced Halt StateKnown for one	No	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	No	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for one	No	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	No	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for one	No	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	No	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	No	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	No	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® InTru™ 3D TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Known for one	No	Unknown — not stated by the source
Processor ARK IDKnown for one	27478	Unknown — not stated by the source
Processor package sizeKnown for one	37.5 x 37.5 mm	Unknown — not stated by the source
Thermal Monitoring TechnologiesKnown for one	No	Unknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Yes	Unknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Conflict-Free processorKnown for one	No	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	Integrated	SoundMAX Cadenza
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 35 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-30 - 60 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	175 mm	276 mm
DepthDiffers	420 mm	270 mm
HeightDiffers	366 mm	89 mm
WeightDiffers	11 kg	6.4 kg
Other featuresidentical
Bundled hardwareKnown for one	Optical Mouse	Unknown — not stated by the source
Security featuresKnown for one	Unknown — not stated by the source	-Boot sequence control -Boot without keyboard or mouse -Configuration password -Diskette Boot inhibit -Diskette I/O control -Hardfile I/O control -Parallel I/O control -Power on password -Security slot (for attachment of optional cable lock)
Optical driveidentical
DVD read speedKnown for one	Unknown — not stated by the source	8x

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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