Product comparison · 2 pcs/workstations

HP Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC vs Lenovo ThinkStation D20

83specifications compared
51differ
32identical
64known for one product only

Key differences

Processor family
- Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC:Intel® Core™2 Duo
- ThinkStation D20:Intel® Xeon® 5000 Sequence
Processor model
- Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC:E6850
- ThinkStation D20:X5550
Processor cores
- Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC:2
- ThinkStation D20:4
Processor threads
- Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC:2
- ThinkStation D20:8
Processor frequency
- Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC:3 GHz
- ThinkStation D20:2.66 GHz
Processor cache
- Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC:4 MB
- ThinkStation D20:8 MB
Processor cache type
- Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC:L2
- ThinkStation D20:Smart Cache
Bus type
- Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC:FSB
- ThinkStation D20:QPI

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC, ThinkStation D20
147 specifications	A HP Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PC View product	B Lenovo ThinkStation D20 View product
Processor19 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™2 Duo	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E6850	X5550
Processor coresDiffers	2	4
Processor threadsDiffers	2	8
Processor frequencyDiffers	3 GHz	2.66 GHz
Processor cacheDiffers	4 MB	8 MB
Processor cache typeDiffers	L2	Smart Cache
Processor front side busKnown for one	1333 MHz	Unknown — not stated by the source
Bus typeDiffers	FSB	QPI
FSB Parity	No	No
Processor lithographyDiffers	65 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core 2 Duo E6000 Series	Intel Xeon 5500 Series
Processor codenameDiffers	Conroe	Nehalem EP
Thermal Design Power (TDP)Differs	65 W	95 W
TcaseDiffers	72 °C	75 °C
Processor socketDiffers	LGA 775 (Socket T)	Socket B (LGA 1366)
Number of Processing Die TransistorsDiffers	291 M	731 M
Processing Die sizeDiffers	143 mm²	263 mm²
CPU multiplier (bus/core ratio)Differs	9	20
SteppingDiffers	G0	D0
ECC supported by processorDiffers	No	Yes
Processor technologyKnown for one	Intel vPro	Unknown — not stated by the source
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.06 GHz
System bus rateKnown for one	Unknown — not stated by the source	6.4 GT/s
Processor system typeKnown for one	Unknown — not stated by the source	DP
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	144 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	800,1066,1333 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	32 GB/s
Memory4 differ
Internal memoryDiffers	2 GB	8 GB
Maximum internal memoryDiffers	8 GB	192 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	2 x 1 GB	4 x 2 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Triple-channel
Storage2 differ
Total storage capacityKnown for one	160 GB	Unknown — not stated by the source
Optical drive typeDiffers	DVD±RW	DVD-RW
HDD interface	SATA	SATA
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Card reader integratedDiffers	No	Yes
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 driveKnown for one	Optional	Unknown — not stated by the source
Storage drive typeKnown for one	160 GB	Unknown — not stated by the source
HDD capacityKnown for one	Unknown — not stated by the source	1.5 TB
Compatible memory cardsKnown for one	Unknown — not stated by the source	CF, MMC, SD, xD
Graphicsidentical
Discrete graphics card modelKnown for one	Intel® GMA 3100	Unknown — not stated by the source
Maximum graphics card memoryKnown for one	0.256 GB	Unknown — not stated by the source
Video card featuresKnown for one	3D/2D Controller: support is fully compliant with Microsoft standard API such as Microsoft DirectX9, DirectXVA, VMR9, GDI/GDI+; OpenGL 1.4.; Integrated VGA Controller; integrated 400 MHz RAMDAC; 400 MHz Controller Clock Speed; Overlay Planes: Single overlay support with 5x3 filtering; Maximum Color	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, 75 Hz at 2048x1536	Unknown — not stated by the source
Graphics cardKnown for one	Unknown — not stated by the source	Quadro FX 4800
Performance1 differ
Product typeDiffers	PC	Workstation
Optical driveidentical
LightScribeKnown for one	Yes	Unknown — not stated by the source
CD read speedKnown for one	Unknown — not stated by the source	40x
Networkidentical
Modem typeKnown for one	No	Unknown — not stated by the source
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers	8	10
Ethernet LAN (RJ-45) portsDiffers	1	2
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	1	0
PS/2 ports quantityDiffers	2	0
Serial ports quantity	1	1
Parallel ports quantity	0	0
I/O portsDiffers	Rear: 6 USB 2.0, 1 serial port, 1 optional serial port, 1 parallel port, 2 PS/2, 1 RJ-45, 1 VGA, audio in/out; Front: 2 USB 2.0, audio ports	1 eSATA, 5 SATA Gen 2, 5 SAS
Line-inKnown for one	Unknown — not stated by the source	Yes
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	2
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slotsidentical
Expansion slotsKnown for one	3 full-height PCI, 1 full-height PCI Express x16, 2 full-height PCI Express x1	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	Unknown — not stated by the source	1
PCI slotsKnown for one	Unknown — not stated by the source	2
Power2 differ
Power requirementsDiffers	Input voltage 90 – 264 / 100 – 240 VAC, 50/60 Hz, 47 – 63 Hz, active PFC (80% High Efficiency) Operating Voltage Range: 90 – 264 VAC; Rated Voltage Range: 100 – 240 VAC; Rated Line Frequency: 50/60 Hz; Operating Line Frequency Range: 47 – 63 Hz; Rated Input Current: 6.0 A; Rated Input Current 80 Plu	100-240V@50-60Hz
Power supplyDiffers	365 W	1060 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	365 W	Unknown — not stated by the source
Power managementKnown for one	Operating Voltage Range: 90 – 264 VAC; Rated Voltage Range: 100 – 240 VAC; Rated Line Frequency: 50/60 Hz; Operating Line Frequency Range: 47 – 63 Hz; Rated Input Current: 6.0 A; Rated Input Current 80 Plus: 5.0 A; Current Leakage (NFPA 99): < 450 µA; System Heat Dissipation: Typical 222 btu/hr (56	Unknown — not stated by the source
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 capable	Unknown — not stated by the source
External drive baysKnown for one	Unknown — not stated by the source	3.5" x 1, 5.25" x 3
Internal drive baysKnown for one	Unknown — not stated by the source	3.5" x 5
Software1 differ
Operating system installedKnown for one	Windows Vista Business	Unknown — not stated by the source
Applications supportedKnown for one	Windows Vista Premium ready	Unknown — not stated by the source
Compatible operating systemsDiffers	Genuine Windows XP Home 32; Genuine Windows Vista Enterprise 32; Genuine Windows Vista Enterprise 64	Windows XP Pro SP1a/SP2a 32/64-bit Red Hat Enterprise Linux 5.0 Windows Vista Business Windows Vista Business 64 Windows Vista Enterprise Edition 32-bit Windows Vista Enterprise Edition 64-bit Windows Vista Ultimate Windows Vista Ultimate 64-Bit
Bundled softwareKnown for one	HP ProtectTools Security Solutions, HP OpenView Configuration Management Solutions Agent, HP Backup & Recovery Manager, HP Insight Diagnostics (available via HP Backup and Recovery Manager), HP Client Foundation Suite (HP Client Manager, HP Systems Insight Manager, Altiris Local Recovery Pro Connect	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
Displayidentical
Display included	No	No
Processor special features10 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 SwitchingDiffers	No	Yes
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)Differs	No	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
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	30785	37106
Processor codeDiffers	SLA9U	SLBF5
Processor package sizeDiffers	37.5 x 37.5 mm	42.5 x 45 mm
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel® Turbo Boost TechnologyDiffers	No	1.0
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
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
CPU configuration (max)Known for one	Unknown — not stated by the source	2
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Audio1 differ
Audio systemDiffers	High Definition Audio	ADI 1988 A
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
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	210 mm
DepthDiffers	452 mm	579 mm
HeightDiffers	447 mm	485 mm
WeightDiffers	11.8 kg	24.9 kg
Keyboard1 differ
Pointing deviceKnown for one	HP PS/2 2-Button Optical Scroll Mouse	Unknown — not stated by the source
Keyboard typeDiffers	HP PS/2	Preferred Pro USB
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 featuresidentical
Security featuresKnown for one	Kensington Lock, Solenoid Hood Lock / Sensor	Unknown — not stated by the source
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
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.

More pcs/workstations comparisons

All pcs/workstations comparisons