Product comparison · 2 pcs/workstations

Dell OptiPlex 780 DT vs Dell OptiPlex 780 MT

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  • 112specifications compared
  • 26differ
  • 86identical
  • 6known for one product only

Key differences

The Dell OptiPlex 780 MT has 0.23 GHz more processor frequency than the Dell OptiPlex 780 DT (3.16 GHz vs 2.93 GHz). The Dell OptiPlex 780 MT has 3 MB more processor cache than the Dell OptiPlex 780 DT (6 MB vs 3 MB). The Dell OptiPlex 780 MT has 267 MHz more processor front side bus than the Dell OptiPlex 780 DT (1333 MHz vs 1066 MHz). Only the Dell OptiPlex 780 MT has Intel Trusted Execution Technology. Only the Dell OptiPlex 780 MT has Intel Virtualization Technology for Directed I/O (VT-d).

  • Processor model
    • OptiPlex 780 DT:E7500
    • OptiPlex 780 MT:E8500
  • Processor frequency
    • OptiPlex 780 DT:2.93 GHz
    • OptiPlex 780 MT:3.16 GHz
  • Processor cache
    • OptiPlex 780 DT:3 MB
    • OptiPlex 780 MT:6 MB
  • Processor front side bus
    • OptiPlex 780 DT:1066 MHz
    • OptiPlex 780 MT:1333 MHz
  • Tcase
    • OptiPlex 780 DT:74.1 °C
    • OptiPlex 780 MT:72.4 °C
  • Number of Processing Die Transistors
    • OptiPlex 780 DT:228 M
    • OptiPlex 780 MT:410 M
  • Processing Die size
    • OptiPlex 780 DT:82 mm²
    • OptiPlex 780 MT:107 mm²
  • CPU multiplier (bus/core ratio)
    • OptiPlex 780 DT:11
    • OptiPlex 780 MT:9.5

Side by side

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Comparison of OptiPlex 780 DT, OptiPlex 780 MT
118 specifications
Processor10 differ
Processor manufacturerIntelIntel
Processor familyIntel® Core™2 DuoIntel® Core™2 Duo
Processor modelDiffersE7500E8500
Processor cores22
Processor threads22
Processor frequencyDiffers2.93 GHz3.16 GHz
Processor cacheDiffers3 MB6 MB
Processor cache typeL2L2
Processor front side busDiffers1066 MHz1333 MHz
Bus typeFSBFSB
FSB ParityNoNo
Processor lithography45 nm45 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Core 2 Duo E7000 SeriesIntel Core 2 Duo E8000 Series
Processor codenameWolfdaleWolfdale
Processor system typeKnown for oneUnknown — not stated by the sourceDP
Thermal Design Power (TDP)65 W65 W
TcaseDiffers74.1 °C72.4 °C
Number of processors installed11
Processor socketLGA 775 (Socket T)LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers228 M410 M
Processing Die sizeDiffers82 mm²107 mm²
CPU multiplier (bus/core ratio)Differs119.5
Processor core voltage (AC)Known for oneUnknown — not stated by the source0.850/1.3625 V
SteppingDiffersR0C0
ECC supported by processorNoNo
Memory2 differ
Internal memoryDiffers3 GB4 GB
Internal memory typeDDR3-SDRAMDDR3-SDRAM
Memory layout (slots x size)Differs1 x 1 + 1 x 2 GB2 x 2 GB
Memory slots4x DIMM4x DIMM
Memory clock speed1333 MHz1333 MHz
Storageidentical
Total storage capacity320 GB320 GB
Optical drive typeDVD-RWDVD-RW
Number of HDDs installed11
HDD interfaceSATASATA
HDD speed7200 RPM7200 RPM
Card reader integratedNoNo
Floppy drive installedNoNo
Graphicsidentical
On-board graphics cardKnown for oneUnknown — not stated by the sourceYes
Discrete graphics card modelKnown for oneUnknown — not stated by the sourceIntel® GMA X4500
Graphics card familyKnown for oneUnknown — not stated by the sourceIntel
Performanceidentical
Product typePCPC
Password protection typeBIOSBIOS
Networkidentical
Ethernet LANYesYes
Ethernet LAN data rates10,100,1000 Mbit/s10,100,1000 Mbit/s
Wi-FiNoNo
Networking featuresGigabit EthernetGigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity99
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity00
DisplayPorts quantity11
HDMI ports quantity00
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Line-outYesYes
Line-inYesYes
Microphone inYesYes
VGA (D-Sub) ports quantity11
DVI portNoNo
PS/2 ports quantity00
Firewire (IEEE 1394) ports00
eSATA ports quantity11
Serial ports quantity11
Parallel ports quantity11
Expansion slotsidentical
PCI Express x1 slotsKnown for oneUnknown — not stated by the source1
PCI Express x16 slots11
PCI slots22
Power1 differ
Power supplyDiffers255 W305 W
Design3 differ
Chassis typeDiffersDesktopMini Tower
Product colourBlackBlack
External drive baysDiffers1x 3.5", 1x 5.25"1x 3.5", 2x 5.25"
Internal drive baysDiffers1x 3.5"2x 3.5"
Softwareidentical
Operating system installedWindows 7 ProfessionalWindows 7 Professional
Displayidentical
Display includedNoNo
Processor special features5 differ
Embedded options availableNoNo
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 TechnologyDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)NoNo
Intel Virtualization Technology (VT-x)Differs2Yes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
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 IDDiffers3650333911
Processor codeDiffersSLB9ZSLAPK
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
Weight & dimensions5 differ
WidthDiffers110 mm190 mm
DepthDiffers400 mm410 mm
HeightDiffers350 mm430 mm
WeightDiffers8.26 kg11.7 kg
Weight (imperial)Differs8.26 kg (18.2 lbs)11.7 kg (25.8 lbs)
Packaging contentidentical
Mouse includedNoNo
Keyboard includedNoNo
Remote control includedNoNo
Certificatesidentical
Compliance industry standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3abIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
CertificationEPEAT Gold, CECP, TCO 05, WEEE, CES, RoHSEPEAT Gold, CECP, TCO 05, WEEE, CES, RoHS
Other featuresidentical
TV tuner integratedNoNo
HDD user passwordYesYes

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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