Product comparison · 2 pcs/workstations

HP Compaq dc7800 convertible minitower pc + L2245W vs Lenovo ThinkCentre A51p Intel® Pentium® 4 530

81specifications compared
36differ
45identical
52known for one product only

Key differences

Processor family
- Compaq dc7800 convertible minitower pc + L2245W:Intel® Core™2 Duo
- ThinkCentre A51p Intel® Pentium® 4 530:Intel® Pentium® 4
Processor model
- Compaq dc7800 convertible minitower pc + L2245W:E6750
- ThinkCentre A51p Intel® Pentium® 4 530:530
Processor cores
- Compaq dc7800 convertible minitower pc + L2245W:2
- ThinkCentre A51p Intel® Pentium® 4 530:1
Processor threads
- Compaq dc7800 convertible minitower pc + L2245W:2
- ThinkCentre A51p Intel® Pentium® 4 530:1
Processor frequency
- Compaq dc7800 convertible minitower pc + L2245W:2.66 GHz
- ThinkCentre A51p Intel® Pentium® 4 530:1.73 GHz
Processor cache
- Compaq dc7800 convertible minitower pc + L2245W:4 MB
- ThinkCentre A51p Intel® Pentium® 4 530:1 MB
Processor front side bus
- Compaq dc7800 convertible minitower pc + L2245W:1333 MHz
- ThinkCentre A51p Intel® Pentium® 4 530:533 MHz
Processor codename
- Compaq dc7800 convertible minitower pc + L2245W:Conroe
- ThinkCentre A51p Intel® Pentium® 4 530:Merom

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc7800 convertible minitower pc + L2245W, A51p
133 specifications	A HP Compaq dc7800 convertible minitower pc + L2245W View product	B Lenovo ThinkCentre A51p Intel® Pentium® 4 530 Model A51p View product
Processor13 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™2 Duo	Intel® Pentium® 4
Processor modelDiffers	E6750	530
Processor coresDiffers	2	1
Processor threadsDiffers	2	1
Processor frequencyDiffers	2.66 GHz	1.73 GHz
Processor cacheDiffers	4 MB	1 MB
Processor cache type	L2	L2
Processor front side busDiffers	1333 MHz	533 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor seriesKnown for one	Intel Core 2 Duo E6000 Series	Unknown — not stated by the source
Processor codenameDiffers	Conroe	Merom
Thermal Design Power (TDP)Differs	65 W	27 W
TcaseDiffers	72 °C	67.7 °C
Processor socketDiffers	LGA 775 (Socket T)	Socket AM2
Number of Processing Die Transistors	291 M	291 M
Processing Die size	143 mm²	143 mm²
CPU multiplier (bus/core ratio)Differs	8	14
SteppingDiffers	G0	A1
ECC supported by processor	No	No
Processor technologyKnown for one	Intel vPro	Unknown — not stated by the source
TjunctionKnown for one	Unknown — not stated by the source	100 °C
Processor core voltage (AC)Known for one	Unknown — not stated by the source	0.95 - 1.30 V
Memory1 differ
Internal memoryDiffers	2 GB	0.5 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory upgradeKnown for one	8 GB	Unknown — not stated by the source
Maximum internal memoryKnown for one	Unknown — not stated by the source	4 GB
Storage1 differ
Total storage capacityDiffers	250 GB	160 GB
Optical drive typeKnown for one	DVD Super Multi	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD interfaceKnown for one	SATA II	Unknown — not stated by the source
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Card reader integratedKnown for one	No	Unknown — not stated by the source
Storage drive controllerKnown for one	SATA 3.0Gb/s NCQ SMART VI	Unknown — not stated by the source
Disk subsystem controllerKnown for one	SATA 3.0Gb/s	Unknown — not stated by the source
Diskette drive memoryKnown for one	Unknown — not stated by the source	1.44 MB
Graphics2 differ
Discrete graphics card modelDiffers	Intel® GMA 3100	Intel® GMA 900
Maximum graphics card memoryKnown for one	0.256 GB	Unknown — not stated by the source
Video card featuresKnown for one	3D/2D	Unknown — not stated by the source
Video adapter, busDiffers	PCI Express x16	PCI Express
Video card resolutionKnown for one	Maximum Vertical Refresh Rate: 85 Hz at up to 1920x1440, 75 Hz at 2048x1536	Unknown — not stated by the source
Video adapter resolutionKnown for one	Unknown — not stated by the source	2048x1536 16777216 colors
Performanceidentical
Product type	PC	PC
Optical driveidentical
LightScribeKnown for one	Yes	Unknown — not stated by the source
Network1 differ
Modem typeKnown for one	No	Unknown — not stated by the source
Networking featuresDiffers	Intel 82566DM	Ethernet/Fast Ethernet/Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantity	8	8
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	No	No
PS/2 ports quantity	2	2
Firewire (IEEE 1394) ports	0	0
eSATA ports quantityKnown for one	0	Unknown — not stated by the source
S/PDIF out port	No	No
TV-out	No	No
Serial ports quantityDiffers	1	0
Parallel ports quantity	1	1
Audio inputKnown for one	1	Unknown — not stated by the source
SmartCard slotKnown for one	Unknown — not stated by the source	No
Modem (RJ-11) portsKnown for one	Unknown — not stated by the source	0
USB 1.1 ports quantityKnown for one	Unknown — not stated by the source	0
Expansion slotsidentical
PCI Express x1 slotsKnown for one	2	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	1	Unknown — not stated by the source
PCI slotsKnown for one	3	Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	365 W	Unknown — not stated by the source
Power supplyKnown for one	Unknown — not stated by the source	310 W
Design1 differ
Chassis typeDiffers	Mini Tower	Tower
Country of originKnown for one	China	Unknown — not stated by the source
Upgrade typeKnown for one	Windows Vista	Unknown — not stated by the source
Softwareidentical
Applications supportedKnown for one	Windows Vista Premium ready	Unknown — not stated by the source
Driver LANKnown for one	Microsoft Windows Vista, Microsoft Windows XP, Microsoft Windows 2000	Unknown — not stated by the source
Operating system installedKnown for one	Unknown — not stated by the source	Windows XP Professional
Bundled softwareKnown for one	Unknown — not stated by the source	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium (license), Lotus SmartSuite Millennium, Access program, IBM Director Agent (web deliverable), ThinkVantage Client Security Software (web-downloadable), Norton AntiVirus 2004 OEM Version, PC Doctor diagnostics, ThinkVantage Rescue
Display1 differ
Display includedDiffers	Yes	No
Display diagonalKnown for one	55.9 cm (22")	Unknown — not stated by the source
Processor special features10 differ
Embedded options availableDiffers	No	Yes
Enhanced Intel SpeedStep TechnologyDiffers	Yes	No
Execute Disable Bit	Yes	Yes
Idle StatesDiffers	Yes	No
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 StateDiffers	Yes	No
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 TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)Differs	Yes	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
Processor ARK IDDiffers	30784	29733
Processor codeDiffers	SLA9V	SLA2G
Processor package sizeDiffers	37.5 x 37.5 mm	35 mm
Thermal Monitoring TechnologiesDiffers	Yes	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
Audioidentical
Audio includedKnown for one	Integrated High Definition audio with ADI1884 codec, 3D audio compliant with AC'97 Rev. 2.3, internal PC speaker	Unknown — not stated by the source
Audio systemKnown for one	Unknown — not stated by the source	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
Relative humidityKnown for one	10 - 90%	Unknown — not stated by the source
Non-operating altitudeKnown for one	9144	Unknown — not stated by the source
Non-operating relative humidity (non-condensing)Known for one	5 - 90%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	177 mm	175 mm
DepthDiffers	452 mm	450 mm
HeightDiffers	447 mm	492 mm
WeightDiffers	11.8 kg	13.5 kg
Multimediaidentical
Built-in cameraKnown for one	No	Unknown — not stated by the source
Keyboardidentical
Pointing deviceKnown for one	HP PS/2 2-Button Optical Scroll Mouse	Unknown — not stated by the source
Keyboard typeKnown for one	HP PS/2	Unknown — not stated by the source
Featuresidentical
Security management descriptionKnown for one	Integrated 1.2 TPM Embedded Security Chip (except for Russia), HP Business PC Security Lock, HP USB Biometric Fingerprint Reader	Unknown — not stated by the source
Other features1 differ
Security featuresDiffers	Kensington Lock, Solenoid Hood Lock / Sensor	-Configuration password -Boot sequence control -Boot without keyboard or mouse -Diskette boot inhibit -Diskette I/O control -Hardfile I/O control -Kensington Lock Standard Enabled -Hard disk drive password -Embedded Security Subsystem standard -Parallel port I/O control -Serial port I/O control -Sec
Drive baysKnown for one	3 external 5.25 inch, 1 external 3.5 inch 2 internal 3.5 inch	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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