Product comparison · 2 pcs/workstations

HP Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor vs Lenovo ThinkCentre A55 Tower 92657JG, DE

81specifications compared
29differ
52identical
56known for one product only

Key differences

The Lenovo ThinkCentre A55 Tower 92657JG, DE has 1.14 GHz more processor frequency than the HP Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor (3 GHz vs 1.86 GHz). The Lenovo ThinkCentre A55 Tower 92657JG, DE has 2 MB more processor cache than the HP Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor (4 MB vs 2 MB). The HP Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor has 266 MHz more processor front side bus than the Lenovo ThinkCentre A55 Tower 92657JG, DE (1066 MHz vs 800 MHz). Only the HP Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor has display included. Only the HP Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor has Intel Virtualization Technology (VT-x).

Processor family
- Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor:Intel® Core™2 Duo
- ThinkCentre A55 Tower 92657JG, DE:Intel® Pentium® D
Processor model
- Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor:E6300
- ThinkCentre A55 Tower 92657JG, DE:925
Processor frequency
- Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor:1.86 GHz
- ThinkCentre A55 Tower 92657JG, DE:3 GHz
Processor cache
- Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor:2 MB
- ThinkCentre A55 Tower 92657JG, DE:4 MB
Processor front side bus
- Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor:1066 MHz
- ThinkCentre A55 Tower 92657JG, DE:800 MHz
Processor codename
- Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor:Conroe
- ThinkCentre A55 Tower 92657JG, DE:Presler
Thermal Design Power (TDP)
- Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor:65 W
- ThinkCentre A55 Tower 92657JG, DE:95 W
Tcase
- Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor:61.4 °C
- ThinkCentre A55 Tower 92657JG, DE:63.4 °C

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor, ThinkCentre A55 Tower 92657JG, DE
137 specifications	A HP Compaq dc7700 SFF (RG580AW) + L1740 17" TFT monitor View product	B Lenovo ThinkCentre A55 Tower 92657JG, DE View product
Processor11 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™2 Duo	Intel® Pentium® D
Processor modelDiffers	E6300	925
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	1.86 GHz	3 GHz
Processor cacheDiffers	2 MB	4 MB
Processor cache type	L2	L2
Processor front side busDiffers	1066 MHz	800 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor codenameDiffers	Conroe	Presler
Thermal Design Power (TDP)Differs	65 W	95 W
TcaseDiffers	61.4 °C	63.4 °C
Number of processors installed	1	1
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	167 M	376 M
Processing Die sizeDiffers	111 mm²	162 mm²
CPU multiplier (bus/core ratio)Differs	7	15
SteppingKnown for one	R0	Unknown — not stated by the source
ECC supported by processor	No	No
Cache externalKnown for one	2048 KB	Unknown — not stated by the source
Processor technologyKnown for one	Intel vPro	Unknown — not stated by the source
Processor seriesKnown for one	Unknown — not stated by the source	Intel Pentium D 900 Series
Memory1 differ
Internal memory	1 GB	1 GB
Maximum internal memoryKnown for one	4 GB	Unknown — not stated by the source
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Known for one	2 x 0.5 GB	Unknown — not stated by the source
Memory slotsDiffers	4x DIMM	2x DIMM
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Memory upgradeKnown for one	4 GB	Unknown — not stated by the source
Standard memory capacityKnown for one	1 MB	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	80 GB	160 GB
Optical drive typeDiffers	DVD-ROM	DVD±RW
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Storage drive controllerKnown for one	Serial ATA (1.5/3.0 Gb/s)	Unknown — not stated by the source
Disk subsystem controllerKnown for one	Serial ATA 3.0 Gb/s	Unknown — not stated by the source
Diskette driveKnown for one	Optional N	Unknown — not stated by the source
Graphicsidentical
Maximum graphics card memoryKnown for one	0.128 GB	Unknown — not stated by the source
Video card featuresKnown for one	3D/2D Controller (Microsoft DirectX 9), VGA integrated controller, RAMDAC integrated (400 MHz) Intel Graphics Media Accelerator 3000 Maximum Vertical Refresh Rate: 85 Hz at up to 1920x1440, 85Hz at 2048x1536 3D/2D Controller (Microsoft DirectX 9), VGA integrated controller, RAMDAC integrated (400 MH	Unknown — not stated by the source
Video adapter, busKnown for one	PCI Express x16	Unknown — not stated by the source
Video card resolutionKnown for one	Maximum Vertical Refresh Rate: 85 Hz at up to 1920x1440, 85Hz at 2048x1536	Unknown — not stated by the source
Performanceidentical
Product type	PC	PC
Network1 differ
Modem typeKnown for one	No	Unknown — not stated by the source
Networking featuresDiffers	Intel 82566DM Gigabit Ethernet	Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	6	6
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone inKnown for one	Yes	Unknown — not stated by the source
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantity	2	2
Serial ports quantity	1	1
Parallel ports quantity	1	1
I/O portsKnown for one	Rear: 6 USB 2.0, 1 standard serial port, 1 optional serial port, 1 parallel port, 1 optional DVI graphics port (available via DVI ADD2 adapter), 2 PS/2, 1 RJ-45, 1 VGA, audio in/out, Front: 2 USB 2.0, headphone and microphone Rear: 6 USB 2.0, 1 standard serial port, 1 optional serial port, 1 paralle	Unknown — not stated by the source
Rear portsKnown for one	6 USB 2.0; 1 serial; 1 parallel; 2 PS/2; 1 audio in; 1 audio out; 1 RJ-45; 1 external VGA monitor	Unknown — not stated by the source
Expansion slots1 differ
Expansion slotsDiffers	2x low-profile PCI 1x low-profile PCI Express x1 1x low-profile PCI Express x16	1x PCI Express 1X 1x PCI Express 16X 2x PCI
Power1 differ
Power supply typeKnown for one	240W power supply - active PFC	Unknown — not stated by the source
Power requirementsKnown for one	Input voltage 90 – 264 / 100 – 240 VAC, 50/60 Hz, 47 – 63 Hz, active PFC	Unknown — not stated by the source
Power supplyDiffers	240 W	280 W
Power supply input voltageKnown for one	100-240 V	Unknown — not stated by the source
Power supply input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Power consumption (typical)Known for one	240 W	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	SFF	Tower
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
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
Upgrade typeKnown for one	Windows Vista capable	Unknown — not stated by the source
Software2 differ
Operating system installedDiffers	Windows XP Professional	Windows Vista Business
Applications supportedKnown for one	Windows Vista Premium ready	Unknown — not stated by the source
Bundled softwareDiffers	HP Protect Tools Security Software Suite HP Client Manager Software HP Open View Configuration Management Altiris Deployment Solution Symantec Antivirus 10.0 (trial) HP Insight Diagnostics	Adobe Acrobat Reader, Diskeeper Lite, Lotus, Google, ThinkVantage
Driver LANKnown for one	Microsoft 2000, Microsoft XP	Unknown — not stated by the source
Display1 differ
Display includedDiffers	Yes	No
Display diagonalKnown for one	43.2 cm (17")	Unknown — not stated by the source
DisplayKnown for one	TFT	Unknown — not stated by the source
Processor special features3 differ
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
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 State	Yes	Yes
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 Technology	No	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	27248	27517
Processor codeKnown for one	SLGW2	Unknown — not stated by the source
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 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
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Audio1 differ
Audio systemDiffers	High Definition Audio +Realtek ALC262 HDA Codec	ADI 1986 A
Audio includedKnown for one	Integrated High Definition audio with Realtek ALC262 High Definition audio codec	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
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	337.8 mm	175 mm
DepthDiffers	378.5 mm	440 mm
HeightDiffers	100.3 mm	402 mm
WeightDiffers	8.85 kg	10.9 kg
Size (imperial)Known for one	33.8 cm (13.3")	Unknown — not stated by the source
Weight (imperial)Known for one	17.18 lb	Unknown — not stated by the source
Keyboardidentical
Pointing deviceKnown for one	HP PS/2 2-Button Optical Scroll Mouse PS/2 2-Button scroll mouse, USB optical scroll mouse or PS/2 optical scroll mouse	Unknown — not stated by the source
Keyboard typeKnown for one	2004 standard PS/2	Unknown — not stated by the source
Multimediaidentical
MultimediaKnown for one	Integrated High Definition audio with Realtek 2 channel ALC262 codec (all ports are stereo)	Unknown — not stated by the source
Featuresidentical
Security management descriptionKnown for one	Embedded TPM1.2 (except for Russia) with optional HP ProtectTools, Embedded Security software	Unknown — not stated by the source
Other featuresidentical
Security featuresKnown for one	Hood Cover Security Loop HP Desktop Security Lock 1.2 TPM Chip	Unknown — not stated by the source
Drive baysKnown for one	1 internal 3.5 inch 1 external 5.25 inch, 1 external 3.5 inch	Unknown — not stated by the source
UNSPSC-codeKnown for one	43211507	Unknown — not stated by the source
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes

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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