Product comparison · 2 pcs/workstations

Dell OptiPlex 790 Intel® Core™ i3 i3-2120 vs Dell Optiplex 790

127specifications compared
22differ
105identical
2known for one product only

Key differences

The Dell Optiplex 790 has 2 more processor cores than the Dell OptiPlex 790 Intel® Core™ i3 i3-2120 (4 vs 2). The Dell OptiPlex 790 Intel® Core™ i3 i3-2120 has 0.2 GHz more processor frequency than the Dell Optiplex 790 (3.3 GHz vs 3.1 GHz). The Dell Optiplex 790 has 3 MB more processor cache than the Dell OptiPlex 790 Intel® Core™ i3 i3-2120 (6 MB vs 3 MB). Only the Dell Optiplex 790 has Intel Trusted Execution Technology. Only the Dell Optiplex 790 has Intel Virtualization Technology for Directed I/O (VT-d).

Processor family
- OptiPlex 790 Intel® Core™ i3 i3-2120:Intel® Core™ i3
- Optiplex 790:Intel® Core™ i5
Processor generation
- OptiPlex 790 Intel® Core™ i3 i3-2120:2nd gen Intel® Core™ i3
- Optiplex 790:2nd gen Intel® Core™ i5
Processor model
- OptiPlex 790 Intel® Core™ i3 i3-2120:i3-2120
- Optiplex 790:i5-2400
Processor cores
- OptiPlex 790 Intel® Core™ i3 i3-2120:2
- Optiplex 790:4
Processor frequency
- OptiPlex 790 Intel® Core™ i3 i3-2120:3.3 GHz
- Optiplex 790:3.1 GHz
Processor cache
- OptiPlex 790 Intel® Core™ i3 i3-2120:3 MB
- Optiplex 790:6 MB
Thermal Design Power (TDP)
- OptiPlex 790 Intel® Core™ i3 i3-2120:65 W
- Optiplex 790:95 W
Tcase
- OptiPlex 790 Intel® Core™ i3 i3-2120:69.1 °C
- Optiplex 790:72.6 °C

Side by side

Differences highlightedShow differences only

Comparison of 790, Optiplex 790
129 specifications	A Dell OptiPlex 790 Intel® Core™ i3 i3-2120 Model 790 View product	B Dell Optiplex 790 View product
Processor11 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i5
Processor modelDiffers	i3-2120	i5-2400
Processor coresDiffers	2	4
Processor threads	4	4
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.4 GHz
Processor frequencyDiffers	3.3 GHz	3.1 GHz
Processor cacheDiffers	3 MB	6 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 seriesDiffers	Intel Core i3-2100 Desktop Series	Intel Core i5-2400 Desktop Series
Processor codename	Sandy Bridge	Sandy Bridge
Thermal Design Power (TDP)Differs	65 W	95 W
TcaseDiffers	69.1 °C	72.6 °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)Differs	33	31
Maximum internal memory supported by processor	32 GB	32 GB
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
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	2 GB	4 GB
Maximum internal memory	16 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	1 x 2 GB	2 x 2 GB
Memory slots	4x DIMM	4x DIMM
Memory clock speed	1333 MHz	1333 MHz
Memory channels	Dual-channel	Dual-channel
Storage3 differ
Total storage capacityDiffers	250 GB	320 GB
Optical drive typeDiffers	DVD-RW	DVD-ROM
Number of HDDs installed	1	1
HDD capacityDiffers	250 GB	320 GB
HDD interface	SATA III	SATA III
HDD speed	7200 RPM	7200 RPM
Card reader integrated	Yes	Yes
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
Performanceidentical
Product type	PC	PC
Motherboard chipset	Intel® Q65 Express	Intel® Q65 Express
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)
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	10	10
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
DisplayPorts quantity	1	1
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	2	2
Line-out	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	No	No
PS/2 ports quantity	2	2
Firewire (IEEE 1394) ports	0	0
Serial ports quantity	1	1
Parallel ports quantity	0	0
Expansion slotsidentical
Number of 3.5" bays	1	1
PCI Express x1 slots	1	1
PCI Express x16 slots	1	1
PCI slots	1	1
Poweridentical
Power supply	250 W	250 W
Designidentical
Chassis type	Desktop	Desktop
Number of 5.25" bays	1	1
Product colour	Black	Black
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Displayidentical
Display included	No	No
Processor special features6 differ
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 TechnologyDiffers	No	Yes
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)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
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 IDDiffers	53426	52207
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 TechnologyDiffers	No	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
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
Weight & dimensionsidentical
Width	102 mm	102 mm
Depth	410 mm	410 mm
Height	360 mm	360 mm
Weight	7.56 kg	7.56 kg
Packaging contentidentical
Mouse included	No	No
Keyboard included	No	No
Certificatesidentical
Compliance certificates	RoHS	RoHS
Certification	CECP, TCO 05, WEEE	CECP, TCO 05, WEEE
Sustainabilityidentical
Sustainability certificates	EPEAT Gold, ENERGY STAR	EPEAT Gold, ENERGY STAR
Other featuresidentical
Security features	TPM	TPM

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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