Product comparison · 2 pcs/workstations

HP Compaq dc7800 small form factor pc + L1740 monitor vs Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES

74specifications compared
25differ
49identical
33known for one product only

Key differences

Processor family
- Compaq dc7800 small form factor pc + L1740 monitor:Intel® Core™2 Duo
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES:Intel® Pentium® D
Processor model
- Compaq dc7800 small form factor pc + L1740 monitor:E6550
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES:925
Processor frequency
- Compaq dc7800 small form factor pc + L1740 monitor:2.33 GHz
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES:3 GHz
Processor front side bus
- Compaq dc7800 small form factor pc + L1740 monitor:1333 MHz
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES:800 MHz
Processor codename
- Compaq dc7800 small form factor pc + L1740 monitor:Conroe
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES:Presler
Thermal Design Power (TDP)
- Compaq dc7800 small form factor pc + L1740 monitor:65 W
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES:95 W
Tcase
- Compaq dc7800 small form factor pc + L1740 monitor:72 °C
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES:63.4 °C
Number of Processing Die Transistors
- Compaq dc7800 small form factor pc + L1740 monitor:291 M
- ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES:376 M

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc7800 small form factor pc + L1740 monitor, ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES
107 specifications	A HP Compaq dc7800 small form factor pc + L1740 monitor View product	B Lenovo ThinkCentre M55 Ultra Small Desktop (8795-B4G), ES View product
Processor11 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™2 Duo	Intel® Pentium® D
Processor modelDiffers	E6550	925
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.33 GHz	3 GHz
Processor cache	4 MB	4 MB
Processor cache type	L2	L2
Processor front side busDiffers	1333 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 seriesDiffers	Intel Core 2 Duo E6000 Series	Intel Pentium D 900 Series
Processor codenameDiffers	Conroe	Presler
Thermal Design Power (TDP)Differs	65 W	95 W
TcaseDiffers	72 °C	63.4 °C
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	291 M	376 M
Processing Die sizeDiffers	143 mm²	162 mm²
CPU multiplier (bus/core ratio)Differs	7	15
SteppingKnown for one	G0	Unknown — not stated by the source
ECC supported by processor	No	No
Number of processors installedKnown for one	Unknown — not stated by the source	1
Memory1 differ
Internal memory	1 GB	1 GB
Maximum internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 1 GB
Storage2 differ
Total storage capacity	160 GB	160 GB
Optical drive typeDiffers	DVD Super Multi	DVD-RW
HDD interfaceDiffers	SATA II	SATA
HDD speed	7200 RPM	7200 RPM
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 3100	Intel® GMA 3000
Performanceidentical
Product type	PC	PC
Optical driveidentical
LightScribeKnown for one	Yes	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Intel 82566DM Gigabit	Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	8	8
Ethernet LAN (RJ-45) ports	1	1
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantityKnown for one	2	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Parallel ports quantity	1	1
Audio inputKnown for one	Yes	Unknown — not stated by the source
Headphone outputsKnown for one	Unknown — not stated by the source	1
Microphone inKnown for one	Unknown — not stated by the source	Yes
Poweridentical
Power requirementsKnown for one	90 – 264 V / 100 – 240 V, 50/60 Hz, 47 – 63 Hz	Unknown — not stated by the source
Power consumption (typical)Known for one	240 W	Unknown — not stated by the source
Power availabilityKnown for one	Unknown — not stated by the source	225 W
Designidentical
Chassis typeKnown for one	SFF	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Bundled softwareKnown for one	Unknown — not stated by the source	Yes
Display1 differ
Display includedDiffers	Yes	No
Display diagonalKnown for one	43.2 cm (17")	Unknown — not stated by the source
Display resolutionKnown for one	1280 x 1024 pixels	Unknown — not stated by the source
Contrast ratio (typical)Known for one	500:1	Unknown — not stated by the source
Display brightnessKnown for one	300 cd/m²	Unknown — not stated by the source
Viewing angle, horizontalKnown for one	150°	Unknown — not stated by the source
Viewing angle, verticalKnown for one	135°	Unknown — not stated by the source
DisplayKnown for one	TFT	Unknown — not stated by the source
Processor special features4 differ
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 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	30783	27517
Processor codeKnown for one	SLA9X	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
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 35 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	337 mm	275 mm
DepthDiffers	378 mm	87.5 mm
HeightDiffers	100 mm	275 mm
WeightDiffers	8.5 kg	6.4 kg
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	ADI 1983 HD
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional

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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