Product comparison · 2 pcs/workstations

Dell 790 + P1911 vs Dell Optiplex 790

112specifications compared
30differ
82identical
32known for one product only

Key differences

The Dell Optiplex 790 has 2 more processor cores than the Dell 790 + P1911 (4 vs 2). The Dell Optiplex 790 has 3 MB more processor cache than the Dell 790 + P1911 (6 MB vs 3 MB). The Dell Optiplex 790 has 3.5°C more tcase than the Dell 790 + P1911 (72.6 °C vs 69.1 °C). Only the Dell 790 + P1911 has display included. Only the Dell Optiplex 790 has embedded options available.

Processor family
- 790 + P1911:Intel® Core™ i3
- Optiplex 790:Intel® Core™ i5
Processor generation
- 790 + P1911:2nd gen Intel® Core™ i3
- Optiplex 790:2nd gen Intel® Core™ i5
Processor model
- 790 + P1911:i3-2100
- Optiplex 790:i5-2400
Processor cores
- 790 + P1911:2
- Optiplex 790:4
Processor cache
- 790 + P1911:3 MB
- Optiplex 790:6 MB
Thermal Design Power (TDP)
- 790 + P1911:35, 65
- Optiplex 790:95 W
Tcase
- 790 + P1911:69.1 °C
- Optiplex 790:72.6 °C
Internal memory
- 790 + P1911:2 GB
- Optiplex 790:4 GB

Side by side

Differences highlightedShow differences only

Comparison of 790 + P1911, Optiplex 790
144 specifications	A Dell 790 + P1911 View product	B Dell Optiplex 790 View product
Processor8 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	i3-2100	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 frequency	3.1 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	35, 65	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)	31	31
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	1066,1333 MHz	1066,1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
ECC supported by processor	No	No
SteppingKnown for one	Q0	Unknown — not stated by the source
Memory1 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)Known for one	Unknown — not stated by the source	2 x 2 GB
Memory slots	4x DIMM	4x DIMM
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory channels	Dual-channel	Dual-channel
Storage2 differ
Total storage capacityDiffers	500 GB	320 GB
Optical drive typeDiffers	DVD Super Multi	DVD-ROM
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD capacityKnown for one	Unknown — not stated by the source	320 GB
HDD interfaceKnown for one	Unknown — not stated by the source	SATA III
HDD speed	7200 RPM	7200 RPM
Card reader integratedKnown for one	Unknown — not stated by the source	Yes
Number of HDDs supportedKnown for one	3	Unknown — not stated by the source
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 featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Wi-FiKnown for one	No	Unknown — not stated by the source
Ports & interfaces1 differ
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 outputsDiffers	1	2
Line-outKnown for one	Unknown — not stated by the source	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
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Expansion slotsidentical
Number of 3.5" baysKnown for one	Unknown — not stated by the source	1
PCI Express x1 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 slots	1	1
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
Number of 5.25" baysKnown for one	Unknown — not stated by the source	1
Product colourDiffers	Black, Silver	Black
Software1 differ
Operating system installedDiffers	FreeDOS	Windows 7 Professional
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Display1 differ
Display includedDiffers	Yes	No
Display diagonalKnown for one	48.3 cm (19")	Unknown — not stated by the source
Display typeKnown for one	LED	Unknown — not stated by the source
Display resolutionKnown for one	1440 x 900 pixels	Unknown — not stated by the source
Native aspect ratioKnown for one	16:10	Unknown — not stated by the source
Contrast ratio (typical)Known for one	1000:1	Unknown — not stated by the source
TouchscreenKnown for one	No	Unknown — not stated by the source
Display brightnessKnown for one	250 cd/m²	Unknown — not stated by the source
Viewing angle, horizontalKnown for one	160°	Unknown — not stated by the source
Viewing angle, verticalKnown for one	160°	Unknown — not stated by the source
DisplayKnown for one	TFT	Unknown — not stated by the source
Processor special features7 differ
CPU configuration (max)	1	1
Embedded options availableDiffers	No	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	53422	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 & 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
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
CertificationKnown for one	Unknown — not stated by the source	CECP, TCO 05, WEEE
Sustainabilityidentical
Sustainability certificates	EPEAT Gold, ENERGY STAR	EPEAT Gold, ENERGY STAR
Other featuresidentical
Security featuresKnown for one	Unknown — not stated by the source	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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