Product comparison · 2 pcs/workstations

HP Compaq dc7900 Intel® Core™2 Duo E8400 vs Lenovo ThinkCentre A62 + 17" monitor

34specifications compared
20differ
14identical
96known for one product only

Key differences

The HP Compaq dc7900 Intel® Core™2 Duo E8400 has 0.9 GHz more processor frequency than the Lenovo ThinkCentre A62 + 17" monitor (3 GHz vs 2.1 GHz). The HP Compaq dc7900 Intel® Core™2 Duo E8400 has 8 GB more maximum internal memory than the Lenovo ThinkCentre A62 + 17" monitor (16 GB vs 8 GB). The Lenovo ThinkCentre A62 + 17" monitor has 160 GB more total storage capacity than the HP Compaq dc7900 Intel® Core™2 Duo E8400 (320 GB vs 160 GB). Only the HP Compaq dc7900 Intel® Core™2 Duo E8400 has card reader integrated. Only the Lenovo ThinkCentre A62 + 17" monitor has display included.

Processor manufacturer
- Compaq dc7900 Intel® Core™2 Duo E8400:Intel
- ThinkCentre A62 + 17" monitor:AMD
Processor family
- Compaq dc7900 Intel® Core™2 Duo E8400:Intel® Core™2 Duo
- ThinkCentre A62 + 17" monitor:AMD Phenom
Processor model
- Compaq dc7900 Intel® Core™2 Duo E8400:E8400
- ThinkCentre A62 + 17" monitor:8450
Processor frequency
- Compaq dc7900 Intel® Core™2 Duo E8400:3 GHz
- ThinkCentre A62 + 17" monitor:2.1 GHz
Maximum internal memory
- Compaq dc7900 Intel® Core™2 Duo E8400:16 GB
- ThinkCentre A62 + 17" monitor:8 GB
Total storage capacity
- Compaq dc7900 Intel® Core™2 Duo E8400:160 GB
- ThinkCentre A62 + 17" monitor:320 GB
Optical drive type
- Compaq dc7900 Intel® Core™2 Duo E8400:DVD-ROM
- ThinkCentre A62 + 17" monitor:DVD±RW
HDD interface
- Compaq dc7900 Intel® Core™2 Duo E8400:SATA II
- ThinkCentre A62 + 17" monitor:SATA

Side by side

Differences highlightedShow differences only

Comparison of dc7900, ThinkCentre A62 + 17" monitor
130 specifications	A HP Compaq dc7900 Intel® Core™2 Duo E8400 Model dc7900 View product	B Lenovo ThinkCentre A62 + 17" monitor View product
Processor4 differ
Processor manufacturerDiffers	Intel	AMD
Processor familyDiffers	Intel® Core™2 Duo	AMD Phenom
Processor modelDiffers	E8400	8450
Processor coresKnown for one	2	Unknown — not stated by the source
Processor threadsKnown for one	2	Unknown — not stated by the source
Processor frequencyDiffers	3 GHz	2.1 GHz
Processor cacheKnown for one	6 MB	Unknown — not stated by the source
Processor cache typeKnown for one	L2	Unknown — not stated by the source
Processor front side busKnown for one	1333 MHz	Unknown — not stated by the source
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	45 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 Core 2 Duo E8000 Series	Unknown — not stated by the source
Processor codenameKnown for one	Wolfdale	Unknown — not stated by the source
Thermal Design Power (TDP)Known for one	65 W	Unknown — not stated by the source
TcaseKnown for one	72.4 °C	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	410 M	Unknown — not stated by the source
Processing Die sizeKnown for one	107 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	9	Unknown — not stated by the source
SteppingKnown for one	E0	Unknown — not stated by the source
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Memory1 differ
Maximum internal memoryDiffers	16 GB	8 GB
Memory slotsKnown for one	4x DIMM	Unknown — not stated by the source
Memory clock speedKnown for one	800 MHz	Unknown — not stated by the source
Storage4 differ
Total storage capacityDiffers	160 GB	320 GB
Optical drive typeDiffers	DVD-ROM	DVD±RW
Storage mediaKnown for one	HDD	Unknown — not stated by the source
Number of HDDs supportedKnown for one	1	Unknown — not stated by the source
Total HDDs capacityKnown for one	160 GB	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityKnown for one	160 GB	Unknown — not stated by the source
HDD interfaceDiffers	SATA II	SATA
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Card reader integratedDiffers	Yes	No
Graphics1 differ
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelDiffers	Not available	AMD Radeon HD 3100
On-board graphics card familyKnown for one	Intel® GMA	Unknown — not stated by the source
On-board graphics card modelKnown for one	Not available	Unknown — not stated by the source
Performance1 differ
Motherboard chipsetDiffers	Intel® Q45	AMD 780V
Optical driveidentical
Optical drives quantityKnown for one	1	Unknown — not stated by the source
Networkidentical
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Wi-FiKnown for one	No	Unknown — not stated by the source
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Ports & interfacesidentical
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
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
Parallel ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slotsidentical
Number of 3.5" baysKnown for one	2	Unknown — not stated by the source
PCI Express x1 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	2	Unknown — not stated by the source
PCI slotsKnown for one	1	Unknown — not stated by the source
Power2 differ
Power supplyDiffers	240 W	220 W
Power supply input voltageDiffers	100 - 240 V	100 - 220 V
Design1 differ
Chassis typeDiffers	SFF	Tower
Placement supportedKnown for one	Horizontal	Unknown — not stated by the source
Number of 5.25" baysKnown for one	1	Unknown — not stated by the source
Product colourKnown for one	Black	Unknown — not stated by the source
Cooling typeKnown for one	Active	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Softwareidentical
Operating system architectureKnown for one	32-bit	Unknown — not stated by the source
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	43.2 cm (17")
Processor special featuresidentical
Embedded options availableKnown for one	Yes	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
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Idle StatesKnown for one	Yes	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	Yes	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	Yes	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	Yes	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Yes	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	33910	Unknown — not stated by the source
Processor codeKnown for one	SLB9J	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	Yes	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	No	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	ADI1884	Realtek ALC662
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	337 mm	174 mm
DepthDiffers	378 mm	440 mm
HeightDiffers	100 mm	402 mm
WeightDiffers	8.5 kg	11 kg
Packaging contentidentical
Mouse includedKnown for one	Yes	Unknown — not stated by the source
Keyboard includedKnown for one	Yes	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Gold, ENERGY STAR	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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