Product comparison · 2 pcs/workstations

HP Pavilion p6799uk Intel® Core™ i5 i5-650 vs Lenovo D20 (4155-22G)

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  • 83specifications compared
  • 50differ
  • 33identical
  • 62known for one product only

Key differences

  • Processor family
    • Pavilion p6799uk Intel® Core™ i5 i5-650:Intel® Core™ i5
    • D20 (4155-22G):Intel® Xeon® 5000 Sequence
  • Processor model
    • Pavilion p6799uk Intel® Core™ i5 i5-650:i5-650
    • D20 (4155-22G):E5520
  • Processor cores
    • Pavilion p6799uk Intel® Core™ i5 i5-650:2
    • D20 (4155-22G):4
  • Processor threads
    • Pavilion p6799uk Intel® Core™ i5 i5-650:4
    • D20 (4155-22G):8
  • Processor boost frequency
    • Pavilion p6799uk Intel® Core™ i5 i5-650:3.46 GHz
    • D20 (4155-22G):2.53 GHz
  • Processor frequency
    • Pavilion p6799uk Intel® Core™ i5 i5-650:3.2 GHz
    • D20 (4155-22G):2.26 GHz
  • Processor cache
    • Pavilion p6799uk Intel® Core™ i5 i5-650:4 MB
    • D20 (4155-22G):8 MB
  • Processor cache type
    • Pavilion p6799uk Intel® Core™ i5 i5-650:L3
    • D20 (4155-22G):Smart Cache

Side by side

Differences highlightedShow differences only (off)
Comparison of p6799uk, D20 (4155-22G)
145 specifications
Processor24 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Core™ i5Intel® Xeon® 5000 Sequence
Processor generationKnown for oneIntel® Core™ i5Unknown — not stated by the source
Processor modelDiffersi5-650E5520
Processor coresDiffers24
Processor threadsDiffers48
Processor boost frequencyDiffers3.46 GHz2.53 GHz
Processor frequencyDiffers3.2 GHz2.26 GHz
Processor cacheDiffers4 MB8 MB
Processor cache typeDiffersL3Smart Cache
Bus typeDiffersDMIQPI
FSB ParityNoNo
System bus rateDiffers2.5 GT/s5.86 GT/s
Processor lithographyDiffers32 nm45 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Core i5-600 Desktop SeriesIntel Xeon 5500 Series
Processor codenameDiffersClarkdaleNehalem EP
Thermal Design Power (TDP)Differs73 W80 W
TcaseDiffers72.6 °C72 °C
Maximum number of PCI Express lanesKnown for one16Unknown — not stated by the source
PCI Express configurationsKnown for one1x16, 2x8Unknown — not stated by the source
PCI Express slots versionKnown for one2.0Unknown — not stated by the source
Processor socketDiffersLGA 1156 (Socket H)Socket B (LGA 1366)
Number of Processing Die TransistorsDiffers382 M731 M
Processing Die sizeDiffers81 mm²263 mm²
CPU multiplier (bus/core ratio)Differs2417
SteppingDiffersC2D0
Maximum internal memory supported by processorDiffers16 GB144 GB
Memory types supported by processorDiffersDDR3 1066/1333DDR3-SDRAM
Memory bandwidth supported by processor (max)Differs21 GB/s25.6 GB/s
ECC supported by processorDiffersNoYes
Processor system typeKnown for oneUnknown — not stated by the sourceDP
Number of QPI linksKnown for oneUnknown — not stated by the source2
Number of processors installedKnown for oneUnknown — not stated by the source1
Memory clock speeds supported by processorKnown for oneUnknown — not stated by the source800,1066 MHz
Memory1 differ
Internal memory4 GB4 GB
Internal memory typeDDR3-SDRAMDDR3-SDRAM
Memory layout (slots x size)2 x 2 GB2 x 2 GB
Memory slotsKnown for one4x DIMMUnknown — not stated by the source
Memory channelsDiffersDual-channelTriple-channel
Maximum internal memoryKnown for oneUnknown — not stated by the source96 GB
Memory clock speedKnown for oneUnknown — not stated by the source1066 MHz
Storage3 differ
Total storage capacityKnown for one1.5 TBUnknown — not stated by the source
Optical drive typeDiffersDVD-ROMDVD-RW
Storage mediaKnown for oneHDDUnknown — not stated by the source
Total HDDs capacityKnown for one1.5 TBUnknown — not stated by the source
HDD interfaceDiffersSATASerial Attached SCSI (SAS)
HDD speedDiffers7200 RPM15000 RPM
Card reader integratedYesYes
Number of HDDs installedKnown for oneUnknown — not stated by the source1
HDD capacityKnown for oneUnknown — not stated by the source147 GB
RAID supportKnown for oneUnknown — not stated by the sourceYes
RAID levelsKnown for oneUnknown — not stated by the source0, 1, 5, 10
Graphicsidentical
On-board graphics cardKnown for oneYesUnknown — not stated by the source
Discrete graphics card modelKnown for oneNVIDIA® GeForce® GT 420Unknown — not stated by the source
On-board graphics card familyKnown for oneIntel® HD GraphicsUnknown — not stated by the source
On-board graphics card modelKnown for oneIntel® HD GraphicsUnknown — not stated by the source
Number of displays supported (on-board graphics)Known for one2Unknown — not stated by the source
On-board graphics card base frequencyKnown for one733 MHzUnknown — not stated by the source
Maximum graphics card memoryKnown for one2.048 GBUnknown — not stated by the source
Graphics card familyKnown for oneNVIDIAUnknown — not stated by the source
Performance1 differ
Product typeDiffersPCWorkstation
Motherboard chipsetKnown for oneIntel® H57Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for oneYesUnknown — not stated by the source
CD read speedKnown for oneUnknown — not stated by the source40x
Networkidentical
Ethernet LANKnown for oneYesUnknown — not stated by the source
Cabling technologyKnown for one10/100/1000Base-T(X)Unknown — not stated by the source
Wi-FiKnown for oneYesUnknown — not stated by the source
Networking featuresKnown for oneUnknown — not stated by the sourceGigabit Ethernet (10/100/1000)
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers810
HDMI ports quantityKnown for one1Unknown — not stated by the source
Headphone outputsDiffers21
Microphone inDiffersNoYes
DVI portKnown for oneYesUnknown — not stated by the source
Firewire (IEEE 1394) portsDiffers12
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for oneUnknown — not stated by the source0
Ethernet LAN (RJ-45) portsKnown for oneUnknown — not stated by the source2
Line-inKnown for oneUnknown — not stated by the sourceYes
VGA (D-Sub) ports quantityKnown for oneUnknown — not stated by the source0
PS/2 ports quantityKnown for oneUnknown — not stated by the source0
eSATA ports quantityKnown for oneUnknown — not stated by the source1
Serial ports quantityKnown for oneUnknown — not stated by the source1
Parallel ports quantityKnown for oneUnknown — not stated by the source0
Expansion slots2 differ
PCI Express x1 slotsDiffers32
PCI Express x16 slotsDiffers12
PCI Express x4 slotsKnown for oneUnknown — not stated by the source1
Design1 differ
Chassis typeDiffersDesktopTower
Product colourBlackBlack
Country of originKnown for oneChinaUnknown — not stated by the source
External drive baysKnown for oneUnknown — not stated by the source1x 3.5", 3x 5.25"
Internal drive baysKnown for oneUnknown — not stated by the source5x 3.5"
Softwareidentical
Operating system installedKnown for oneWindows 7 Home PremiumUnknown — not stated by the source
Operating system architectureKnown for one64-bitUnknown — not stated by the source
Compatible operating systemsKnown for oneUnknown — not stated by the sourceWindows XP Pro SP1a/SP2a 32/64-bit; Red Hat Enterprise Linux 5.0; Windows Vista 32/64-bit; Windows Vista Enterprise 32/64-bit; Windows Vista Ultimate 32/64-bit.
Displayidentical
Display includedNoNo
Processor special features10 differ
CPU configuration (max)Differs12
Embedded options availableNoNo
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Graphics & IMC lithographyKnown for one45 nmUnknown — not stated by the source
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingDiffersNoYes
Intel Dual Display Capable TechnologyDiffersYesNo
Intel Enhanced Halt StateYesYes
Intel FDI TechnologyDiffersYesNo
Intel Fast Memory AccessNoNo
Intel Flex Memory AccessNoNo
Intel Rapid Storage TechnologyNoNo
Intel Trusted Execution TechnologyDiffersYesNo
Intel VT-x with Extended Page Tables (EPT)YesYes
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)YesYes
Intel® AES New Instructions (Intel® AES-NI)DiffersYesNo
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersYesNo
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
Physical Address Extension (PAE)Differs36 bit40 bit
Processor ARK IDDiffers4354640200
Processor package sizeDiffers37.5 x 37.5 mm42.5 x 45 mm
Supported instruction setsKnown for oneSSE4.2Unknown — not stated by the source
Thermal Monitoring TechnologiesNoNo
Intel® Turbo Boost Technology1.01.0
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Quick Sync Video TechnologyNoNo
Intel® My WiFi Technology (Intel® MWT)NoNo
Intel® Anti-Theft Technology (Intel® AT)NoNo
Conflict-Free processorNoNo
Intel® Smart CacheKnown for oneUnknown — not stated by the sourceYes
Processor codeKnown for oneUnknown — not stated by the sourceSLBFD
Weight & dimensions4 differ
WidthDiffers175 mm210 mm
DepthDiffers414 mm602 mm
HeightDiffers387 mm434 mm
WeightDiffers9.6 kg24.9 kg
Packaging contentidentical
Remote control includedKnown for oneYesUnknown — not stated by the source
Featuresidentical
TV tuner typeKnown for oneDVB-TUnknown — not stated by the source
Other featuresidentical
TV tuner integratedKnown for oneYesUnknown — not stated by the source
Poweridentical
Power requirementsKnown for oneUnknown — not stated by the source100-240V, 50/60Hz
Power supplyKnown for oneUnknown — not stated by the source1060 W
Audioidentical
Audio systemKnown for oneUnknown — not stated by the sourceADI 1988 A
Ergonomicsidentical
Acoustic pressure emissionsKnown for oneUnknown — not stated by the source24 dB
Certificatesidentical
Compliance industry standardsKnown for oneUnknown — not stated by the sourceIEEE 802.3, IEEE 802.3u, IEEE 802.3ab

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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