Product comparison · 2 pcs/workstations

Dell 390 SF vs Dell OptiPlex 790 SFF

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  • 114specifications compared
  • 36differ
  • 78identical
  • 13known for one product only

Key differences

The Dell OptiPlex 790 SFF has 2 more processor cores than the Dell 390 SF (4 vs 2). The Dell OptiPlex 790 SFF has 4 more processor threads than the Dell 390 SF (8 vs 4). The Dell OptiPlex 790 SFF has 0.1 GHz more processor frequency than the Dell 390 SF (3.4 GHz vs 3.3 GHz). Only the Dell OptiPlex 790 SFF has Intel Trusted Execution Technology. Only the Dell OptiPlex 790 SFF has Intel Virtualization Technology for Directed I/O (VT-d).

  • Processor family
    • 390 SF:Intel® Core™ i3
    • OptiPlex 790 SFF:Intel® Core™ i7
  • Processor generation
    • 390 SF:2nd gen Intel® Core™ i3
    • OptiPlex 790 SFF:2nd gen Intel® Core™ i7
  • Processor model
    • 390 SF:i3-2120
    • OptiPlex 790 SFF:i7-2600
  • Processor cores
    • 390 SF:2
    • OptiPlex 790 SFF:4
  • Processor threads
    • 390 SF:4
    • OptiPlex 790 SFF:8
  • Processor frequency
    • 390 SF:3.3 GHz
    • OptiPlex 790 SFF:3.4 GHz
  • Processor cache
    • 390 SF:3 MB
    • OptiPlex 790 SFF:8 MB
  • Thermal Design Power (TDP)
    • 390 SF:65 W
    • OptiPlex 790 SFF:95 W

Side by side

Differences highlightedShow differences only (on)
Comparison of 390 SF, OptiPlex 790 SFF
127 specifications
Processor12 differ
Processor familyDiffersIntel® Core™ i3Intel® Core™ i7
Processor generationDiffers2nd gen Intel® Core™ i32nd gen Intel® Core™ i7
Processor modelDiffersi3-2120i7-2600
Processor coresDiffers24
Processor threadsDiffers48
Processor boost frequencyKnown for oneUnknown — not stated by the source3.8 GHz
Processor frequencyDiffers3.3 GHz3.4 GHz
Processor cacheDiffers3 MB8 MB
Processor seriesDiffersIntel Core i3-2100 Desktop SeriesIntel Core i7-2600 Desktop Series
Thermal Design Power (TDP)Differs65 W95 W
TcaseDiffers69.1 °C72.6 °C
CPU multiplier (bus/core ratio)Differs3334
SteppingKnown for oneUnknown — not stated by the sourceD2
Memory types supported by processorDiffersDDR3 1066/1333DDR3-SDRAM
Memory clock speeds supported by processorKnown for oneUnknown — not stated by the source1066,1333 MHz
Memory5 differ
Internal memoryDiffers2 GB4 GB
Maximum internal memoryDiffers8 GB16 GB
Memory layout (slots x size)Differs1 x 2 GB2 x 2 GB
Memory slotsDiffers2x DIMM4x DIMM
Memory clock speedDiffers2133 MHz1333 MHz
Storage3 differ
Total storage capacityDiffers250 GB500 GB
Optical drive typeDiffersDVD±RWDVD-RW
HDD capacityDiffers250 GB500 GB
HDD speedKnown for oneUnknown — not stated by the source7200 RPM
Graphics1 differ
On-board graphics card dynamic frequency (max)Differs1100 MHz1350 MHz
Performance1 differ
Motherboard chipsetDiffersIntel® H61Intel® Q65 Express
Networkidentical
Ethernet LAN data ratesKnown for oneUnknown — not stated by the source10,100,1000 Mbit/s
Cabling technologyKnown for oneUnknown — not stated by the source10/100/1000Base-T(X)
Networking featuresKnown for oneUnknown — not stated by the sourceGigabit Ethernet
Wi-FiKnown for oneNoUnknown — not stated by the source
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers87
HDMI ports quantityDiffers10
Expansion slots1 differ
PCI Express x16 slotsDiffers12
PCI Express x1 slotsKnown for one1Unknown — not stated by the source
Power1 differ
Power supplyDiffers250 W240 W
Design1 differ
Product colourDiffersBlackBlack, Silver
External drive baysKnown for one1 x 5.25"Unknown — not stated by the source
Internal drive baysKnown for one1 x 3.5"Unknown — not stated by the source
Processor special features5 differ
Intel Trusted Execution TechnologyDiffersNoYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Processor ARK IDDiffers5342652213
Processor codeKnown for oneUnknown — not stated by the sourceSR00B
Intel® Turbo Boost TechnologyDiffersNo2.0
Weight & dimensions3 differ
WidthDiffers93 mm36.5 mm
DepthDiffers312 mm122 mm
HeightDiffers290 mm114.2 mm
Certificatesidentical
Compliance certificatesKnown for oneUnknown — not stated by the sourceRoHS
Sustainability1 differ
Sustainability certificatesDiffersENERGY STAREPEAT Gold, ENERGY STAR

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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