Product comparison · 2 pcs/workstations

Dell 390 SFF vs Dell 790 SFF

129specifications compared
4differ
125identical
5known for one product only

Key differences

The Dell 790 SFF has 8 GB more maximum internal memory than the Dell 390 SFF (16 GB vs 8 GB). The Dell 790 SFF has 2 x DIMM more memory slots than the Dell 390 SFF (4x DIMM vs 2x DIMM). The Dell 790 SFF has 2 more USB 2.0 ports quantity than the Dell 390 SFF (10 vs 8). Motherboard chipset: Intel® H61 on the Dell 390 SFF, Intel® Q65 Express on the Dell 790 SFF.

Maximum internal memory
- 390 SFF:8 GB
- 790 SFF:16 GB
Memory slots
- 390 SFF:2x DIMM
- 790 SFF:4x DIMM
Motherboard chipset
- 390 SFF:Intel® H61
- 790 SFF:Intel® Q65 Express
USB 2.0 ports quantity
- 390 SFF:8
- 790 SFF:10

Side by side

Differences highlightedShow differences only

Comparison of 390 SFF, 790 SFF
134 specifications	A Dell 390 SFF View product	B Dell 790 SFF View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i3	Intel® Core™ i3
Processor generation	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i3
Processor model	i3-2120	i3-2120
Processor cores	2	2
Processor threads	4	4
Processor frequency	3.3 GHz	3.3 GHz
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	DMI	DMI
FSB Parity	No	No
System bus rate	5 GT/s	5 GT/s
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i3-2100 Desktop Series	Intel Core i3-2100 Desktop Series
Processor codename	Sandy Bridge	Sandy Bridge
Thermal Design Power (TDP)	65 W	65 W
Tcase	69.1 °C	69.1 °C
Maximum number of PCI Express lanes	16	16
PCI Express slots version	2.0	2.0
Number of processors installed	1	1
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)	33	33
Maximum number of SMP processors	1	1
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processor	DDR3 1066/1333	DDR3 1066/1333
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
ECC supported by processor	No	No
Memory2 differ
Internal memory	2 GB	2 GB
Maximum internal memoryDiffers	8 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)	1 x 2 GB	1 x 2 GB
Memory slotsDiffers	2x DIMM	4x DIMM
Memory clock speed	1333 MHz	1333 MHz
Memory channels	Dual-channel	Dual-channel
Storageidentical
Total storage capacity	250 GB	250 GB
Optical drive type	DVD±RW	DVD±RW
Number of HDDs installed	1	1
HDD capacity	250 GB	250 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Floppy drive installed	No	No
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics card model	Not available	Not available
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 2000	Intel® HD Graphics 2000
Number of displays supported (on-board graphics)	2	2
On-board graphics card base frequency	850 MHz	850 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card ID	0x102	0x102
Graphics card family	Intel	Intel
Performance1 differ
Product type	PC	PC
Motherboard chipsetDiffers	Intel® H61	Intel® Q65 Express
Password protection type	BIOS	BIOS
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Ethernet interface type	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	8	10
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	3	3
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantityKnown for one	Unknown — not stated by the source	2
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Headphone connectivity	3.5 mm	3.5 mm
Microphone connectivity	3.5 mm	3.5 mm
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
HDMIKnown for one	Yes	Unknown — not stated by the source
Expansion slotsidentical
Number of 3.5" bays	1	1
PCI Express x4 slots	1	1
PCI Express x16 slots	1	1
Poweridentical
Power supply	240 W	240 W
Designidentical
Chassis type	SFF	SFF
Placement supported	Horizontal/Vertical	Horizontal/Vertical
Number of 5.25" bays	1	1
Product colour	Black, Silver	Black, Silver
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	32-bit	32-bit
Mac compatibility	No	No
Displayidentical
Display included	No	No
Processor special featuresidentical
CPU configuration (max)	1	1
Embedded options available	Yes	Yes
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK ID	53426	53426
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Audioidentical
Audio system	HDA	HDA
Operational conditionsidentical
Operating temperature (T-T)	10 - 35 °C	10 - 35 °C
Storage temperature (T-T)	-40 - 60 °C	-40 - 60 °C
Relative humidity	20 - 80%	20 - 80%
Non-operating altitude	-15.2 - 10668 m	-15.2 - 10668 m
Weight & dimensionsidentical
Width	92.6 mm	92.6 mm
Depth	312 mm	312 mm
Height	290 mm	290 mm
Weight	5.7 kg	5.7 kg
Packaging dataidentical
Package dimensions (WxDxH)	401.6 x 258.8 x 489 mm	401.6 x 258.8 x 489 mm
Package weight	6.89 kg	6.89 kg
Packaging contentidentical
Mouse included	Yes	Yes
Keyboard included	Yes	Yes
Certificatesidentical
Compliance certificates	RoHS	RoHS
Certification	CECP, TCO 3, WEEE, Japan Energy Law, Japan Green PC, South Korea Eco-label, EU RoHS, China RoHS, Blue Angel	CECP, TCO 3, WEEE, Japan Energy Law, Japan Green PC, South Korea Eco-label, EU RoHS, China RoHS, Blue Angel
Sustainabilityidentical
Sustainability certificates	EPEAT Gold, 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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