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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

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

Key differences

  • Processor family
    • Intel® Core™2 Duo
    • Intel® Xeon® 5000 Sequence
  • Processor model
    • E6850
    • X5550
  • Processor cores
    • 2
    • 4
  • Processor threads
    • 2
    • 8
  • Processor frequency
    • 3 GHz
    • 2.66 GHz
  • Processor cache
    • 4 MB
    • 8 MB
  • Processor cache type
    • L2
    • Smart Cache
  • Bus type
    • FSB
    • QPI

Side by side

Differences highlightedShow differences only
147 specifications
A

HP

Compaq dc7800p Intel Core™2 Duo Processor E6850 2G/160G DVD+/-RW WVST Bus Convertible Minitower PCView product
B

Lenovo

ThinkStation D20View product
Processor19 differ
Processor familyDiffersIntel® Core™2 DuoIntel® Xeon® 5000 Sequence
Processor modelDiffersE6850X5550
Processor coresDiffers24
Processor threadsDiffers28
Processor frequencyDiffers3 GHz2.66 GHz
Processor cacheDiffers4 MB8 MB
Processor cache typeDiffersL2Smart Cache
Processor front side busKnown for one1333 MHz
Bus typeDiffersFSBQPI
Processor lithographyDiffers65 nm45 nm
Processor seriesDiffersIntel Core 2 Duo E6000 SeriesIntel Xeon 5500 Series
Processor codenameDiffersConroeNehalem EP
Thermal Design Power (TDP)Differs65 W95 W
TcaseDiffers72 °C75 °C
Processor socketDiffersLGA 775 (Socket T)Socket B (LGA 1366)
Number of Processing Die TransistorsDiffers291 M731 M
Processing Die sizeDiffers143 mm²263 mm²
CPU multiplier (bus/core ratio)Differs920
SteppingDiffersG0D0
ECC supported by processorDiffersNoYes
Processor technologyKnown for oneIntel vPro
Processor boost frequencyKnown for one3.06 GHz
System bus rateKnown for one6.4 GT/s
Processor system typeKnown for oneDP
Number of QPI linksKnown for one2
Maximum internal memory supported by processorKnown for one144 GB
Memory types supported by processorKnown for oneDDR3-SDRAM
Memory clock speeds supported by processorKnown for one800,1066,1333 MHz
Memory bandwidth supported by processor (max)Known for one32 GB/s
Memory4 differ
Internal memoryDiffers2 GB8 GB
Maximum internal memoryDiffers8 GB192 GB
Internal memory typeDiffersDDR2-SDRAMDDR3-SDRAM
Memory layout (slots x size)Differs2 x 1 GB4 x 2 GB
Memory clock speedKnown for one1333 MHz
Memory channelsKnown for oneTriple-channel
Storage2 differ
Total storage capacityKnown for one160 GB
Optical drive typeDiffersDVD±RWDVD-RW
HDD speedKnown for one7200 RPM
Card reader integratedDiffersNoYes
Storage drive controllerKnown for oneSATA 3.0Gb/s NCQ SMART VI
Disk subsystem controllerKnown for oneSATA 3.0Gb/s
Diskette driveKnown for oneOptional
Storage drive typeKnown for one160 GB
HDD capacityKnown for one1.5 TB
Compatible memory cardsKnown for oneCF, MMC, SD, xD
Graphicsidentical
Discrete graphics card modelKnown for oneIntel® GMA 3100
Maximum graphics card memoryKnown for one0.256 GB
Video card featuresKnown for one3D/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
Video adapter, busKnown for onePCI Express x16
Video card resolutionKnown for oneMaximum Vertical Refresh Rate: 85 Hz at up to 1920x1440, 75 Hz at 2048x1536
Graphics cardKnown for oneQuadro FX 4800
Performance1 differ
Product typeDiffersPCWorkstation
Optical driveidentical
LightScribeKnown for oneYes
CD read speedKnown for one40x
Networkidentical
Modem typeKnown for oneNo
Networking featuresKnown for oneGigabit Ethernet
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers810
Ethernet LAN (RJ-45) portsDiffers12
VGA (D-Sub) ports quantityDiffers10
PS/2 ports quantityDiffers20
I/O portsDiffersRear: 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 ports1 eSATA, 5 SATA Gen 2, 5 SAS
Line-inKnown for oneYes
Firewire (IEEE 1394) portsKnown for one2
eSATA ports quantityKnown for one1
Expansion slotsidentical
Expansion slotsKnown for one3 full-height PCI, 1 full-height PCI Express x16, 2 full-height PCI Express x1
PCI Express x16 slotsKnown for one1
PCI slotsKnown for one2
Power2 differ
Power requirementsDiffersInput 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 Plu100-240V@50-60Hz
Power supplyDiffers365 W1060 W
Power supply input voltageKnown for one100 - 240 V
Power supply input frequencyKnown for one50 - 60 Hz
Power consumption (typical)Known for one365 W
Power managementKnown for oneOperating 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
Design1 differ
Chassis typeDiffersMini TowerTower
Country of originKnown for oneChina
Upgrade typeKnown for oneWindows Vista capable
External drive baysKnown for one3.5" x 1, 5.25" x 3
Internal drive baysKnown for one3.5" x 5
Software1 differ
Operating system installedKnown for oneWindows Vista Business
Applications supportedKnown for oneWindows Vista Premium ready
Compatible operating systemsDiffersGenuine Windows XP Home 32; Genuine Windows Vista Enterprise 32; Genuine Windows Vista Enterprise 64Windows 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 oneHP 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
Driver LANKnown for oneMicrosoft Windows Vista, Microsoft Windows XP, Microsoft Windows 2000
Processor special features10 differ
Intel Demand Based SwitchingDiffersNoYes
Intel Trusted Execution TechnologyDiffersYesNo
Intel VT-x with Extended Page Tables (EPT)DiffersNoYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Processor ARK IDDiffers3078537106
Processor codeDiffersSLA9USLBF5
Processor package sizeDiffers37.5 x 37.5 mm42.5 x 45 mm
Thermal Monitoring TechnologiesDiffersYesNo
Intel® Turbo Boost TechnologyDiffersNo1.0
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
CPU configuration (max)Known for one2
Intel® Smart CacheKnown for oneYes
Physical Address Extension (PAE)Known for oneYes
Audio1 differ
Audio systemDiffersHigh Definition AudioADI 1988 A
Audio includedKnown for oneIntegrated High Definition audio with ADI1884 codec, 3D audio compliant with AC'97 Rev. 2.3, internal PC speaker
Operational conditionsidentical
Operating temperature (T-T)Known for one10 - 35 °C
Storage temperature (T-T)Known for one-30 - 60 °C
Operating relative humidity (H-H)Known for one10 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Relative humidityKnown for one10 - 90%
Non-operating altitudeKnown for one9144
Non-operating relative humidity (non-condensing)Known for one5 - 90%
Weight & dimensions4 differ
WidthDiffers177 mm210 mm
DepthDiffers452 mm579 mm
HeightDiffers447 mm485 mm
WeightDiffers11.8 kg24.9 kg
Keyboard1 differ
Pointing deviceKnown for oneHP PS/2 2-Button Optical Scroll Mouse
Keyboard typeDiffersHP PS/2Preferred Pro USB
Featuresidentical
Security management descriptionKnown for oneIntegrated 1.2 TPM Embedded Security Chip (except for Russia), HP Business PC Security Lock, HP USB Biometric Fingerprint Reader
Other featuresidentical
Security featuresKnown for oneKensington Lock, Solenoid Hood Lock / Sensor
Drive baysKnown for one3 external 5.25 inch, 1 external 3.5 inch 2 internal 3.5 inch
Packaging contentidentical
Mouse includedKnown for oneYes

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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