Product comparison · 2 pcs/workstations

Dell OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM vs HP 400 G2 DM

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  • 91specifications compared
  • 52differ
  • 39identical
  • 95known for one product only

Key differences

The HP 400 G2 DM has 2 more processor cores than the Dell OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM (4 vs 2). The HP 400 G2 DM has 2 more processor threads than the Dell OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM (4 vs 2). The Dell OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM has 0.3 GHz more processor frequency than the HP 400 G2 DM (2.8 GHz vs 2.5 GHz). Only the HP 400 G2 DM has enhanced Intel SpeedStep Technology. Only the HP 400 G2 DM has Intel Clear Video Technology.

  • Processor family
    • OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM:Intel® Pentium® D
    • 400 G2 DM:Intel® Core™ i5
  • Processor model
    • OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM:820
    • 400 G2 DM:i5-6500T
  • Processor cores
    • OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM:2
    • 400 G2 DM:4
  • Processor threads
    • OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM:2
    • 400 G2 DM:4
  • Processor frequency
    • OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM:2.8 GHz
    • 400 G2 DM:2.5 GHz
  • Processor cache
    • OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM:2 MB
    • 400 G2 DM:6 MB
  • Processor cache type
    • OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM:L2
    • 400 G2 DM:Smart Cache
  • Bus type
    • OptiPlex GX520 Intel® Pentium® D 820 DDR2-SDRAM:FSB
    • 400 G2 DM:DMI3

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Comparison of GX520, 400 G2 DM
186 specifications
Processor14 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Pentium® DIntel® Core™ i5
Processor generationKnown for oneUnknown — not stated by the source6th gen Intel® Core™ i5
Processor modelDiffers820i5-6500T
Processor coresDiffers24
Processor threadsDiffers24
Processor boost frequencyKnown for oneUnknown — not stated by the source3.1 GHz
Processor frequencyDiffers2.8 GHz2.5 GHz
Processor cacheDiffers2 MB6 MB
Processor cache typeDiffersL2Smart Cache
Bus typeDiffersFSBDMI3
FSB ParityNoNo
System bus rateKnown for oneUnknown — not stated by the source8 GT/s
Processor lithographyDiffers90 nm14 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Pentium D 800 SeriesIntel Core i5-6500 Desktop series
Processor codenameDiffersSmithfieldSkylake
Thermal Design Power (TDP)Differs95 W35 W
TcaseDiffers64.1 °C66 °C
Maximum number of PCI Express lanesKnown for oneUnknown — not stated by the source16
PCI Express configurationsKnown for oneUnknown — not stated by the source1x16, 2x8, 1x8+2x4
PCI Express slots versionKnown for oneUnknown — not stated by the source3.0
Number of processors installed11
Processor socketDiffersLGA 775 (Socket T)LGA 1151 (Socket H4)
SteppingKnown for oneUnknown — not stated by the sourceR0
Maximum internal memory supported by processorKnown for oneUnknown — not stated by the source64 GB
Memory types supported by processorKnown for oneUnknown — not stated by the sourceDDR3L-SDRAM, DDR4-SDRAM
Memory clock speeds supported by processorKnown for oneUnknown — not stated by the source2133,1333,1600,1866 MHz
Memory bandwidth supported by processor (max)Known for oneUnknown — not stated by the source34.1 GB/s
ECC supported by processorNoNo
Memory voltage supported by processorKnown for oneUnknown — not stated by the source1.35 V
Processor front side busKnown for one800 MHzUnknown — not stated by the source
Number of Processing Die TransistorsKnown for one230 MUnknown — not stated by the source
Processing Die sizeKnown for one206 mm²Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one14Unknown — not stated by the source
Processor core voltage (AC)Known for one1.25 - 1.40 VUnknown — not stated by the source
Memory3 differ
Internal memoryKnown for oneUnknown — not stated by the source4 GB
Maximum internal memoryDiffers2 GB32 GB
Internal memory typeDiffersDDR2-SDRAMDDR4-SDRAM
Memory layout (slots x size)Known for oneUnknown — not stated by the source1 x 4 GB
Memory slotsDiffers2x DIMM2x SO-DIMM
Memory clock speedKnown for oneUnknown — not stated by the source2133 MHz
Memory channelsKnown for oneUnknown — not stated by the sourceDual-channel
Non-ECCKnown for oneYesUnknown — not stated by the source
Storage4 differ
Total storage capacityDiffers80 GB500 GB
Optical drive typeDiffersDVD Super MultiNo
Storage mediaHDDHDD
Number of storage drives installed11
Total HDDs capacityKnown for oneUnknown — not stated by the source500 GB
Number of HDDs installed11
HDD capacityDiffers80 GB500 GB
HDD interfaceDiffersSATA IISATA
HDD speedKnown for oneUnknown — not stated by the source7200 RPM
Card reader integratedKnown for oneUnknown — not stated by the sourceNo
Graphics2 differ
On-board graphics cardYesYes
Discrete graphics card modelKnown for oneUnknown — not stated by the sourceNot available
Number of discrete graphics cardsKnown for oneUnknown — not stated by the source0
On-board graphics card familyDiffersIntel® GMAIntel® HD Graphics
On-board graphics card modelDiffersIntel® GMA 950Intel® HD Graphics 530
Maximum on-board graphics card memoryKnown for oneUnknown — not stated by the source1.7 GB
Number of displays supported (on-board graphics)Known for oneUnknown — not stated by the source3
On-board graphics card base frequencyKnown for oneUnknown — not stated by the source350 MHz
On-board graphics card burst frequencyKnown for oneUnknown — not stated by the source1100 MHz
On-board graphics card dynamic frequency (max)Known for oneUnknown — not stated by the source1100 MHz
On-board graphics card DirectX versionKnown for oneUnknown — not stated by the source12.0
On-board graphics card IDKnown for oneUnknown — not stated by the source0x1912
On-board graphics card OpenGL versionKnown for oneUnknown — not stated by the source4.4
Performance2 differ
Product typeDiffersPCMini PC
Motherboard chipsetDiffersIntel® 945GIntel® H110
Optical drive1 differ
Optical drives quantityDiffers10
Networkidentical
Ethernet LANYesYes
Ethernet LAN data rates10,100,1000 Mbit/s10,100,1000 Mbit/s
Cabling technology10/100/1000Base-T(X)10/100/1000Base-T(X)
Wi-FiNoNo
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers82
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers04
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity00
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity00
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityKnown for oneUnknown — not stated by the source0
Thunderbolt ports quantityKnown for oneUnknown — not stated by the source0
Thunderbolt 2 ports quantityKnown for oneUnknown — not stated by the source0
Thunderbolt 3 ports quantityKnown for oneUnknown — not stated by the source0
DisplayPorts quantityKnown for oneUnknown — not stated by the source1
HDMI ports quantity00
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Microphone inYesYes
VGA (D-Sub) ports quantity11
DVI portNoNo
Mini HDMI ports quantityKnown for oneUnknown — not stated by the source0
Mini DisplayPorts quantityKnown for oneUnknown — not stated by the source0
PS/2 ports quantityKnown for oneUnknown — not stated by the source0
DC-in jackKnown for oneUnknown — not stated by the sourceYes
Serial ports quantity11
Line-outKnown for oneYesUnknown — not stated by the source
Line-inKnown for oneYesUnknown — not stated by the source
Parallel ports quantityKnown for one1Unknown — not stated by the source
Power1 differ
Power supplyDiffers220 W65 W
Power supply input voltageKnown for oneUnknown — not stated by the source100 - 240 V
Power supply input frequencyKnown for oneUnknown — not stated by the source50 - 60 Hz
Design1 differ
Chassis typeDiffersDesktopMini PC
VolumeKnown for oneUnknown — not stated by the source1 L
Placement supportedKnown for oneUnknown — not stated by the sourceHorizontal/Vertical
Number of 2.5" baysKnown for oneUnknown — not stated by the source1
Liquid cooling systemKnown for oneUnknown — not stated by the sourceNo
Product colourBlackBlack
Country of originKnown for oneUnknown — not stated by the sourceChina
Software1 differ
Operating system installedDiffersWindows 7 Home PremiumWindows 7 Professional
Operating system architectureKnown for oneUnknown — not stated by the source64-bit
Recovery operating systemKnown for oneUnknown — not stated by the sourceWindows 10 Pro
Drivers includedKnown for oneYesUnknown — not stated by the source
Displayidentical
Display includedNoNo
Processor special features18 differ
CPU configuration (max)Known for oneUnknown — not stated by the source1
Embedded options availableNoNo
Enhanced Intel SpeedStep TechnologyDiffersNoYes
Execute Disable BitYesYes
Graphics & IMC lithographyKnown for oneUnknown — not stated by the source14 nm
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyDiffersNoYes
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 HD GraphicsKnown for oneUnknown — not stated by the sourceYes
Intel Identity Protection Technology versionKnown for oneUnknown — not stated by the source1.00
Intel QuickPath InterconnectKnown for oneUnknown — not stated by the sourceNo
Intel Rapid Storage TechnologyNoNo
Intel Secure Key Technology versionKnown for oneUnknown — not stated by the source1.00
Intel Small Business Advantage (SBA) versionKnown for oneUnknown — not stated by the source1.00
Intel Software Guard Extensions (Intel SGX)Known for oneUnknown — not stated by the sourceYes
Intel Stable Image Platform Program (SIPP)Known for oneUnknown — not stated by the sourceYes
Intel Stable Image Platform Program (SIPP) versionKnown for oneUnknown — not stated by the source1.00
Intel TSX-NIKnown for oneUnknown — not stated by the sourceYes
Intel TSX-NI versionKnown for oneUnknown — not stated by the source1.00
Intel Trusted Execution TechnologyDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)DiffersNoYes
Intel Virtualization Technology (VT-x)DiffersNoYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Active Management Technology (Intel® AMT)Known for oneUnknown — not stated by the sourceNo
Intel® Built-in Visuals TechnologyKnown for oneUnknown — not stated by the sourceYes
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)DiffersNoYes
Intel® High Definition Audio (Intel® HD Audio)Known for oneUnknown — not stated by the sourceNo
Intel® InTru™ 3D TechnologyDiffersNoYes
Intel® Insider™DiffersNoYes
Intel® Matrix Storage Technology (Intel® MST)Known for oneUnknown — not stated by the sourceNo
Intel® OS GuardKnown for oneUnknown — not stated by the sourceYes
Intel® Secure KeyKnown for oneUnknown — not stated by the sourceYes
Intel® Small Business Advantage (Intel® SBA)Known for oneUnknown — not stated by the sourceYes
Intel® Smart CacheDiffersNoYes
Intel® Wireless Display (Intel® WiDi)DiffersNoYes
Processor ARK IDDiffers2751288183
Processor codeKnown for oneUnknown — not stated by the sourceSR2BZ
Processor package size37.5 x 37.5 mm37.5 x 37.5 mm
ScalabilityKnown for oneUnknown — not stated by the source1S
Supported instruction setsKnown for oneUnknown — not stated by the sourceSSE4.2, AVX 2.0, SSE4.1
Thermal Monitoring TechnologiesDiffersNoYes
Thermal solution specificationKnown for oneUnknown — not stated by the sourcePCG 2015A
Thunderbolt™ 3 TechnologyKnown for oneUnknown — not stated by the sourceNo
Intel® Smart Response TechnologyKnown for oneUnknown — not stated by the sourceNo
Intel® Rapid Start TechnologyKnown for oneUnknown — not stated by the sourceNo
Intel® Turbo Boost TechnologyDiffersNo2.0
Intel Smart Connect TechnologyKnown for oneUnknown — not stated by the sourceNo
Intel® Hyper Threading Technology (Intel® HT Technology)NoNo
Intel® Quick Sync Video TechnologyDiffersNoYes
Intel® My WiFi Technology (Intel® MWT)NoNo
Intel® Identity Protection Technology (Intel® IPT)Known for oneUnknown — not stated by the sourceYes
Intel® Anti-Theft Technology (Intel® AT)NoNo
Conflict-Free processorDiffersNoYes
Physical Address Extension (PAE)Known for oneYesUnknown — not stated by the source
Audioidentical
Audio systemKnown for oneUnknown — not stated by the sourceDTS Sound+
Weight & dimensions3 differ
WidthDiffers114.3 mm175 mm
DepthDiffers347.7 mm177 mm
HeightDiffers395.9 mm34 mm
WeightKnown for oneUnknown — not stated by the source1.3 kg
Packaging contentidentical
Mouse includedKnown for oneUnknown — not stated by the sourceYes
Keyboard includedKnown for oneUnknown — not stated by the sourceYes
Numeric keypadKnown for oneUnknown — not stated by the sourceYes
ManualKnown for oneYesUnknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for oneUnknown — not stated by the sourceRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneUnknown — not stated by the sourceEPEAT Silver, ENERGY STAR
Other featuresidentical
Intel segment taggingKnown for oneUnknown — not stated by the sourceEnterprise, Small Business

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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