Product comparison · 2 pcs/workstations

HP Compaq dc7600 SFF PC vs Lenovo ThinkCentre A51 Pentium 4 3.0GHz

30specifications compared
10differ
20identical
76known for one product only

Key differences

The HP Compaq dc7600 SFF PC has 1.07 GHz more processor frequency than the Lenovo ThinkCentre A51 Pentium 4 3.0GHz (2.8 GHz vs 1.73 GHz). The HP Compaq dc7600 SFF PC has 267 MHz more processor front side bus than the Lenovo ThinkCentre A51 Pentium 4 3.0GHz (800 MHz vs 533 MHz). The Lenovo ThinkCentre A51 Pentium 4 3.0GHz has 40 GB more total storage capacity than the HP Compaq dc7600 SFF PC (80 GB vs 40 GB). Networking features: Gigabit Ethernet on the HP Compaq dc7600 SFF PC, Ethernet/Fast Ethernet on the Lenovo ThinkCentre A51 Pentium 4 3.0GHz. Chassis type: SFF on the HP Compaq dc7600 SFF PC, Tower on the Lenovo ThinkCentre A51 Pentium 4 3.0GHz.

Processor frequency
- Compaq dc7600 SFF PC:2.8 GHz
- ThinkCentre A51 Pentium 4 3.0GHz:1.73 GHz
Processor front side bus
- Compaq dc7600 SFF PC:800 MHz
- ThinkCentre A51 Pentium 4 3.0GHz:533 MHz
Total storage capacity
- Compaq dc7600 SFF PC:40 GB
- ThinkCentre A51 Pentium 4 3.0GHz:80 GB
Networking features
- Compaq dc7600 SFF PC:Gigabit Ethernet
- ThinkCentre A51 Pentium 4 3.0GHz:Ethernet/Fast Ethernet
USB 2.0 ports quantity
- Compaq dc7600 SFF PC:8
- ThinkCentre A51 Pentium 4 3.0GHz:6
Chassis type
- Compaq dc7600 SFF PC:SFF
- ThinkCentre A51 Pentium 4 3.0GHz:Tower
Width
- Compaq dc7600 SFF PC:338 mm
- ThinkCentre A51 Pentium 4 3.0GHz:178 mm
Depth
- Compaq dc7600 SFF PC:379 mm
- ThinkCentre A51 Pentium 4 3.0GHz:450 mm

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc7600 SFF PC, ThinkCentre A51 Pentium 4 3.0GHz
106 specifications	A HP Compaq dc7600 SFF PC View product	B Lenovo ThinkCentre A51 Pentium 4 3.0GHz View product
Processor2 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Pentium® 4	Intel® Pentium® 4
Processor modelKnown for one	Unknown — not stated by the source	530
Processor coresKnown for one	Unknown — not stated by the source	1
Processor threadsKnown for one	Unknown — not stated by the source	1
Processor frequencyDiffers	2.8 GHz	1.73 GHz
Processor cache	1 MB	1 MB
Processor cache type	L2	L2
Processor front side busDiffers	800 MHz	533 MHz
Bus typeKnown for one	Unknown — not stated by the source	FSB
FSB ParityKnown for one	Unknown — not stated by the source	No
Processor lithographyKnown for one	Unknown — not stated by the source	65 nm
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
Processor codenameKnown for one	Unknown — not stated by the source	Merom
Thermal Design Power (TDP)Known for one	Unknown — not stated by the source	27 W
TcaseKnown for one	Unknown — not stated by the source	67.7 °C
TjunctionKnown for one	Unknown — not stated by the source	100 °C
Processor socketKnown for one	Unknown — not stated by the source	Socket AM2
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	291 M
Processing Die sizeKnown for one	Unknown — not stated by the source	143 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	14
Processor core voltage (AC)Known for one	Unknown — not stated by the source	0.95 - 1.30 V
SteppingKnown for one	Unknown — not stated by the source	A1
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Processor technologyKnown for one	Hyper-Threading	Unknown — not stated by the source
Memoryidentical
Internal memory	0.25 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
Storage1 differ
Total storage capacityDiffers	40 GB	80 GB
Optical drive type	CD-ROM	CD-ROM
HDD interface	SATA	SATA
Diskette drive memoryKnown for one	Unknown — not stated by the source	1.44 MB
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Graphicsidentical
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
Optical driveidentical
CD read speed	48x	48x
Network1 differ
Networking featuresDiffers	Gigabit Ethernet	Ethernet/Fast Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	8	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
Line-outKnown for one	Yes	Unknown — not stated by the source
Line-inKnown for one	Yes	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Poweridentical
Power supplyKnown for one	Unknown — not stated by the source	310 W
Power supply typeKnown for one	Active PFC	Unknown — not stated by the source
Power requirementsKnown for one	90 - 264V / 100 - 240V, 50/60Hz	Unknown — not stated by the source
Power availabilityKnown for one	240 W	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	SFF	Tower
External drive baysKnown for one	1x 5.25"; 1x 3.5"	Unknown — not stated by the source
Internal drive baysKnown for one	1x 3.5"	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled softwareKnown for one	Unknown — not stated by the source	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium, Access program, Norton AntiVirus 2005 with 90 days of virus definition upgrades, PC Doctor diagnostics, ThinkVantage Rescue and Recovery with Rapid Restore
Displayidentical
Display included	No	No
Processor special featuresidentical
Embedded options availableKnown for one	Unknown — not stated by the source	Yes
Enhanced Intel SpeedStep TechnologyKnown for one	Unknown — not stated by the source	No
Execute Disable BitKnown for one	Unknown — not stated by the source	Yes
Idle StatesKnown for one	Unknown — not stated by the source	No
Intel 64Known for one	Unknown — not stated by the source	Yes
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	No
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	No
Intel Fast Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	No
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology (VT-x)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Unknown — not stated by the source	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Insider™Known for one	Unknown — not stated by the source	No
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
Processor ARK IDKnown for one	Unknown — not stated by the source	29733
Processor codeKnown for one	Unknown — not stated by the source	SLA2G
Processor package sizeKnown for one	Unknown — not stated by the source	35 mm
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	No
Intel® Quick Sync Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	SoundMAX Cadenza
Weight & dimensions4 differ
WidthDiffers	338 mm	178 mm
DepthDiffers	379 mm	450 mm
HeightDiffers	100 mm	432 mm
WeightDiffers	8.85 kg	10.5 kg
Other featuresidentical
Security featuresKnown for one	Unknown — not stated by the source	-Boot sequence control -U-Bolt anchoring feature -Parallel port I/O control -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control -Hardfile I/O control -Diskette boot inhibit -Diskette I/O control -Boot without keyboard or mouse -Configuration password
Expansion slotsidentical
Expansion slotsKnown for one	2x low profile PCI 1x low profile PCI Express x1 1x low profile PCI Express x16	Unknown — not stated by the source
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

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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