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Product comparison · 2 pcs/workstations

HP dc7900 CMT + iPAQ Voice Messenger vs HP dc7900 SFF + iPAQ Voice Messenger

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  • 96specifications compared
  • 26differ
  • 70identical
  • 8known for one product only

Key differences

  • Processor family
    • Intel® Core™2 Quad
    • Intel® Core™2 Duo
  • Processor model
    • Q9400
    • E8500
  • Processor cores
    • 4
    • 2
  • Processor threads
    • 4
    • 2
  • Processor frequency
    • 2.66 GHz
    • 3.16 GHz
  • Processor codename
    • Yorkfield
    • Wolfdale
  • Thermal Design Power (TDP)
    • 95 W
    • 65 W
  • Tcase
    • 71.4 °C
    • 72.4 °C

Side by side

Differences highlightedShow differences only
104 specifications
A

HP

dc7900 CMT + iPAQ Voice MessengerView product
B

HP

dc7900 SFF + iPAQ Voice MessengerView product
Processor13 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Core™2 QuadIntel® Core™2 Duo
Processor modelDiffersQ9400E8500
Processor coresDiffers42
Processor threadsDiffers42
Processor frequencyDiffers2.66 GHz3.16 GHz
Processor cache6 MB6 MB
Processor cache typeL2L2
Processor front side bus1333 MHz1333 MHz
Bus typeFSBFSB
FSB ParityNoNo
Processor lithography45 nm45 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Core 2 Quad Q9000 Series for DesktopIntel Core 2 Duo E8000 Series
Processor codenameDiffersYorkfieldWolfdale
Thermal Design Power (TDP)Differs95 W65 W
TcaseDiffers71.4 °C72.4 °C
Processor socketLGA 775 (Socket T)LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers456 M410 M
Processing Die sizeDiffers164 mm²107 mm²
CPU multiplier (bus/core ratio)Differs89.5
SteppingDiffersR0C0
ECC supported by processorNoNo
Processor system typeKnown for oneDP
Processor core voltage (AC)Known for one0.850/1.3625 V
Memoryidentical
Internal memory2 GB2 GB
Maximum internal memory16 GB16 GB
Internal memory typeDDR2-SDRAMDDR2-SDRAM
Memory layout (slots x size)Known for one2 x 1 GB
Memory clock speed800 MHz800 MHz
Storage1 differ
Total storage capacityDiffers500 GB250 GB
Optical drive typeDVD Super MultiDVD Super Multi
HDD speed7200 RPM7200 RPM
Card reader integratedYesYes
Storage drive controllerSATA 3.0Gb/sSATA 3.0Gb/s
Graphicsidentical
Discrete graphics card modelIntel® GMA 4500MIntel® GMA 4500M
Video adapter, busPCI Express x16PCI Express x16
Graphics card familyKnown for oneIntel
Performanceidentical
Product typePCPC
Optical driveidentical
LightScribeYesYes
Networkidentical
Networking featuresGigabit NetworkGigabit Network
Ports & interfacesidentical
USB 2.0 ports quantity88
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Microphone inYesYes
VGA (D-Sub) ports quantity11
PS/2 ports quantity22
Serial ports quantity11
Parallel ports quantity00
Expansion slots2 differ
PCI Express x1 slots11
PCI Express x16 slotsDiffers12
Expansion slotsDiffers3 x PCI1 x PCI
Power1 differ
Power consumption (typical)Differs365 W240 W
Design2 differ
Chassis typeDiffersMini TowerSFF
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneKensington
External drive baysDiffers3 x 5.25", 1 x 3.5"1 x 5.25", 1 x 3.5"
Country of originChinaChina
Softwareidentical
Operating system installedWindows Vista BusinessWindows Vista Business
Displayidentical
Display includedNoNo
Processor special features3 differ
Embedded options availableDiffersYesNo
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingNoNo
Intel Dual Display Capable TechnologyNoNo
Intel Enhanced Halt StateYesYes
Intel FDI TechnologyNoNo
Intel Fast Memory AccessNoNo
Intel Flex Memory AccessNoNo
Intel Rapid Storage TechnologyNoNo
Intel Trusted Execution TechnologyYesYes
Intel VT-x with Extended Page Tables (EPT)NoNo
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)YesYes
Intel® AES New Instructions (Intel® AES-NI)NoNo
Intel® Clear Video HD Technology (Intel® CVT HD)NoNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)NoNo
Intel® InTru™ 3D TechnologyNoNo
Intel® Insider™NoNo
Intel® Wireless Display (Intel® WiDi)NoNo
Processor ARK IDDiffers3536533911
Processor codeDiffersSLB6BSLAPK
Processor package size37.5 x 37.5 mm37.5 x 37.5 mm
Thermal Monitoring TechnologiesYesYes
Intel® Turbo Boost TechnologyNoNo
Intel® Hyper Threading Technology (Intel® HT Technology)NoNo
Intel® Quick Sync Video TechnologyNoNo
Intel® My WiFi Technology (Intel® MWT)NoNo
Intel® Anti-Theft Technology (Intel® AT)NoNo
Conflict-Free processorNoNo
Audioidentical
Audio systemHDHD
Operational conditionsidentical
Operating temperature (T-T)10 - 35 °C10 - 35 °C
Storage temperature (T-T)-30 - 60 °C-30 - 60 °C
Operating relative humidity (H-H)10 - 90%10 - 90%
Storage relative humidity (H-H)5 - 95%5 - 95%
Relative humidityKnown for one10 - 90%
Non-operating relative humidity (non-condensing)Known for one5 - 90%
Weight & dimensions4 differ
WidthDiffers177 mm337 mm
DepthDiffers452 mm378 mm
HeightDiffers447 mm100 mm
WeightDiffers11.8 kg8.5 kg

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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