Product comparison · 2 pcs/workstations

Dell OptiPlex 390 DT (X043900106E) vs Dell OptiPlex 990 MT (X029900109E)

113specifications compared
22differ
91identical
11known for one product only

Key differences

Processor family
- OptiPlex 390 DT (X043900106E):Intel® Core™ i5
- OptiPlex 990 MT (X029900109E):Intel® Core™ i7
Processor generation
- OptiPlex 390 DT (X043900106E):2nd gen Intel® Core™ i5
- OptiPlex 990 MT (X029900109E):2nd gen Intel® Core™ i7
Processor model
- OptiPlex 390 DT (X043900106E):i5-2400
- OptiPlex 990 MT (X029900109E):i7-2600
Processor threads
- OptiPlex 390 DT (X043900106E):4
- OptiPlex 990 MT (X029900109E):8
Processor boost frequency
- OptiPlex 390 DT (X043900106E):3.4 GHz
- OptiPlex 990 MT (X029900109E):3.8 GHz
Processor frequency
- OptiPlex 390 DT (X043900106E):3.1 GHz
- OptiPlex 990 MT (X029900109E):3.4 GHz
Processor cache
- OptiPlex 390 DT (X043900106E):6 MB
- OptiPlex 990 MT (X029900109E):8 MB
CPU multiplier (bus/core ratio)
- OptiPlex 390 DT (X043900106E):31
- OptiPlex 990 MT (X029900109E):34

Side by side

Differences highlightedShow differences only

Comparison of OptiPlex 390 DT (X043900106E), OptiPlex 990 MT (X029900109E)
124 specifications	A Dell OptiPlex 390 DT (X043900106E)View product	B Dell OptiPlex 990 MT (X029900109E)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	2 x 4 GB	4 x 4 GB
Memory slotsDiffers	2x DIMM	4x DIMM
Storage1 differ
HDD interfaceDiffers	SATA	SATA III
Graphics1 differ
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1350 MHz
Performance1 differ
Motherboard chipsetDiffers	Intel® H61	Intel® Q67 Express
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	8	10
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
PS/2 ports quantityDiffers	1	2
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	1
Parallel ports quantityKnown for one	Unknown — not stated by the source	1
COM ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slots1 differ
PCI Express x1 slotsDiffers	3	1
PCI Express x4 slotsKnown for one	Unknown — not stated by the source	1
PCI slotsKnown for one	Unknown — not stated by the source	2
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 & dimensions2 differ
WidthDiffers	102 mm	175 mm
DepthDiffers	410 mm	417 mm
WeightKnown for one	Unknown — not stated by the source	8.87 kg
Poweridentical
Power supplyKnown for one	250 W	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	Energy Star 5.0 compliant	Unknown — not stated by the source

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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