Product comparison · 2 pcs/workstations

Dell 390 SFF vs Dell OptiPlex 990

115specifications compared
42differ
73identical
35known for one product only

Key differences

The Dell OptiPlex 990 has 2 more processor cores than the Dell 390 SFF (4 vs 2). The Dell OptiPlex 990 has 4 more processor threads than the Dell 390 SFF (8 vs 4). The Dell OptiPlex 990 has 0.1 GHz more processor frequency than the Dell 390 SFF (3.4 GHz vs 3.3 GHz). Only the Dell OptiPlex 990 has Intel Trusted Execution Technology. Only the Dell OptiPlex 990 has Intel Virtualization Technology for Directed I/O (VT-d).

Processor family
- 390 SFF:Intel® Core™ i3
- OptiPlex 990:Intel® Core™ i7
Processor generation
- 390 SFF:2nd gen Intel® Core™ i3
- OptiPlex 990:2nd gen Intel® Core™ i7
Processor model
- 390 SFF:i3-2120
- OptiPlex 990:i7-2600
Processor cores
- 390 SFF:2
- OptiPlex 990:4
Processor threads
- 390 SFF:4
- OptiPlex 990:8
Processor frequency
- 390 SFF:3.3 GHz
- OptiPlex 990:3.4 GHz
Processor cache
- 390 SFF:3 MB
- OptiPlex 990:8 MB
Thermal Design Power (TDP)
- 390 SFF:65 W
- OptiPlex 990:95 W

Side by side

Differences highlightedShow differences only

Comparison of 390 SFF, OptiPlex 990
150 specifications	A Dell 390 SFF View product	B Dell OptiPlex 990 View product
Processor12 differ
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i7
Processor generationDiffers	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i7
Processor modelDiffers	i3-2120	i7-2600
Processor coresDiffers	2	4
Processor threadsDiffers	4	8
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.8 GHz
Processor frequencyDiffers	3.3 GHz	3.4 GHz
Processor cacheDiffers	3 MB	8 MB
Processor seriesDiffers	Intel Core i3-2100 Desktop Series	Intel Core i7-2600 Desktop Series
Thermal Design Power (TDP)Differs	65 W	95 W
TcaseDiffers	69.1 °C	72.6 °C
CPU multiplier (bus/core ratio)Differs	33	34
SteppingKnown for one	Unknown — not stated by the source	D2
Memory types supported by processorDiffers	DDR3 1066/1333	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	1066,1333 MHz
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
Memory4 differ
Internal memoryDiffers	2 GB	4 GB
Maximum internal memoryDiffers	8 GB	16 GB
Memory layout (slots x size)Differs	1 x 2 GB	2 x 2 GB
Memory slotsDiffers	2x DIMM	4x DIMM
Storage4 differ
Total storage capacityDiffers	250 GB	500 GB
Optical drive typeDiffers	DVD±RW	DVD-RW
HDD capacityDiffers	250 GB	500 GB
HDD interfaceDiffers	SATA	SATA, SATA II
Card reader integratedKnown for one	Unknown — not stated by the source	Yes
Floppy drive installedKnown for one	No	Unknown — not stated by the source
Graphics1 differ
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1350 MHz
Performance1 differ
Motherboard chipsetDiffers	Intel® H61	Intel® Q67 Express
Networkidentical
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Ethernet interface typeKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	8	11
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
HDMI ports quantityDiffers	1	0
Headphone outputsDiffers	3	2
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
DVI portKnown for one	Unknown — not stated by the source	No
PS/2 ports quantityKnown for one	Unknown — not stated by the source	2
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Parallel ports quantityKnown for one	Unknown — not stated by the source	0
HDMIKnown for one	Yes	Unknown — not stated by the source
Headphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Microphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Expansion slots1 differ
PCI Express x1 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 slotsDiffers	1	2
PCI slotsKnown for one	Unknown — not stated by the source	1
PCI Express x4 slotsKnown for one	1	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	240 W	250 W
Design2 differ
Chassis typeDiffers	SFF	Desktop
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Product colourDiffers	Black, Silver	Black
Placement supportedKnown for one	Horizontal/Vertical	Unknown — not stated by the source
Software1 differ
Operating system architectureDiffers	32-bit	64-bit
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Processor special features5 differ
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Processor ARK IDDiffers	53426	52213
Processor codeKnown for one	Unknown — not stated by the source	SR00B
Intel® Turbo Boost TechnologyDiffers	No	2.0
Weight & dimensions4 differ
WidthDiffers	92.6 mm	102 mm
DepthDiffers	312 mm	410 mm
HeightDiffers	290 mm	360 mm
WeightDiffers	5.7 kg	7.56 kg
Packaging content2 differ
Mouse includedDiffers	Yes	No
Keyboard includedDiffers	Yes	No
Certificates1 differ
CertificationDiffers	CECP, TCO 3, WEEE, Japan Energy Law, Japan Green PC, South Korea Eco-label, EU RoHS, China RoHS, Blue Angel	CECP, TCO 05, WEEE
Other featuresidentical
Security featuresKnown for one	Unknown — not stated by the source	TPM
Audioidentical
Audio systemKnown for one	HDA	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 35 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 60 °C	Unknown — not stated by the source
Relative humidityKnown for one	20 - 80%	Unknown — not stated by the source
Non-operating altitudeKnown for one	-15.2 - 10668 m	Unknown — not stated by the source
Packaging dataidentical
Package dimensions (WxDxH)Known for one	401.6 x 258.8 x 489 mm	Unknown — not stated by the source
Package weightKnown for one	6.89 kg	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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