Product comparison · 2 pcs/workstations

Dell OptiPlex 390 MT vs Dell OptiPlex 790 SFF

117specifications compared
28differ
89identical
10known for one product only

Key differences

The Dell OptiPlex 790 SFF has 4 more processor threads than the Dell OptiPlex 390 MT (8 vs 4). The Dell OptiPlex 790 SFF has 0.4 GHz more processor boost frequency than the Dell OptiPlex 390 MT (3.8 GHz vs 3.4 GHz). The Dell OptiPlex 790 SFF has 0.3 GHz more processor frequency than the Dell OptiPlex 390 MT (3.4 GHz vs 3.1 GHz). Only the Dell OptiPlex 790 SFF has Intel® Hyper Threading Technology (Intel® HT Technology). Processor family: Intel® Core™ i5 on the Dell OptiPlex 390 MT, Intel® Core™ i7 on the Dell OptiPlex 790 SFF.

Processor family
- OptiPlex 390 MT:Intel® Core™ i5
- OptiPlex 790 SFF:Intel® Core™ i7
Processor generation
- OptiPlex 390 MT:2nd gen Intel® Core™ i5
- OptiPlex 790 SFF:2nd gen Intel® Core™ i7
Processor model
- OptiPlex 390 MT:i5-2400
- OptiPlex 790 SFF:i7-2600
Processor threads
- OptiPlex 390 MT:4
- OptiPlex 790 SFF:8
Processor boost frequency
- OptiPlex 390 MT:3.4 GHz
- OptiPlex 790 SFF:3.8 GHz
Processor frequency
- OptiPlex 390 MT:3.1 GHz
- OptiPlex 790 SFF:3.4 GHz
Processor cache
- OptiPlex 390 MT:6 MB
- OptiPlex 790 SFF:8 MB
CPU multiplier (bus/core ratio)
- OptiPlex 390 MT:31
- OptiPlex 790 SFF:34

Side by side

Differences highlightedShow differences only

Comparison of OptiPlex 390 MT, OptiPlex 790 SFF
127 specifications	A Dell OptiPlex 390 MT View product	B Dell OptiPlex 790 SFF View product
Processor9 differ
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i7
Processor modelDiffers	i5-2400	i7-2600
Processor threadsDiffers	4	8
Processor boost frequencyDiffers	3.4 GHz	3.8 GHz
Processor frequencyDiffers	3.1 GHz	3.4 GHz
Processor cacheDiffers	6 MB	8 MB
Processor seriesDiffers	Intel Core i5-2400 Desktop Series	Intel Core i7-2600 Desktop Series
CPU multiplier (bus/core ratio)Differs	31	34
SteppingKnown for one	Unknown — not stated by the source	D2
Memory3 differ
Maximum internal memoryDiffers	8 GB	16 GB
Memory layout (slots x size)Differs	1 x 4 GB	2 x 2 GB
Memory slotsDiffers	2x DIMM	4x DIMM
Storage1 differ
Optical drive typeDiffers	DVD±RW	DVD-RW
Graphics1 differ
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1350 MHz
Performance1 differ
Motherboard chipsetDiffers	Intel® H61	Intel® Q65 Express
Networkidentical
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Wi-FiKnown for one	No	Unknown — not stated by the source
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	8	7
HDMI ports quantityDiffers	1	0
Expansion slots1 differ
PCI Express x16 slotsDiffers	1	2
PCI Express x1 slotsKnown for one	3	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	250 W	240 W
Design2 differ
Chassis typeDiffers	Mini Tower	SFF
Product colourDiffers	Black	Black, Silver
External drive baysKnown for one	2 x 5.25"	Unknown — not stated by the source
Internal drive baysKnown for one	2 x 3.5"	Unknown — not stated by the source
Processor special features2 differ
Processor ARK IDDiffers	52207	52213
Processor codeKnown for one	Unknown — not stated by the source	SR00B
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Weight & dimensions4 differ
WidthDiffers	175 mm	36.5 mm
DepthDiffers	360 mm	122 mm
HeightDiffers	417 mm	114.2 mm
WeightDiffers	8.87 kg	5.7 kg
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT 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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