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 manufacturer	Intel	Intel
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 cores	4	4
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 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 i5-2400 Desktop Series	Intel Core i7-2600 Desktop Series
Processor codename	Sandy Bridge	Sandy Bridge
Thermal Design Power (TDP)	95 W	95 W
Tcase	72.6 °C	72.6 °C
Maximum number of PCI Express lanes	16	16
PCI Express slots version	2.0	2.0
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)Differs	31	34
SteppingKnown for one	Unknown — not stated by the source	D2
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
Memory3 differ
Internal memory	4 GB	4 GB
Maximum internal memoryDiffers	8 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	2 x 4 GB	4 x 4 GB
Memory slotsDiffers	2x DIMM	4x DIMM
Memory clock speed	1333 MHz	1333 MHz
Memory channels	Dual-channel	Dual-channel
Storage1 differ
Total storage capacity	1 TB	1 TB
Optical drive type	DVD±RW	DVD±RW
Number of HDDs installed	1	1
HDD capacity	1 TB	1 TB
HDD interfaceDiffers	SATA	SATA III
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
Graphics1 differ
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)Differs	1100 MHz	1350 MHz
On-board graphics card ID	0x102	0x102
Graphics card family	Intel	Intel
Performance1 differ
Product type	PC	PC
Motherboard chipsetDiffers	Intel® H61	Intel® Q67 Express
Networkidentical
Ethernet LAN	Yes	Yes
Wi-Fi	No	No
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	8	10
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	1	1
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-out	Yes	Yes
Line-in	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	Yes	Yes
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
Audio input	1	1
Expansion slots1 differ
PCI Express x1 slotsDiffers	3	1
PCI Express x4 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	2
Designidentical
Chassis type	Desktop	Desktop
Product colour	Black	Black
Softwareidentical
Operating system installed	FreeDOS	FreeDOS
Bundled software	DOS	DOS
Displayidentical
Display included	No	No
Processor special features2 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 Technology	Yes	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)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	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	52207	52213
Processor codeKnown for one	Unknown — not stated by the source	SR00B
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	2.0	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	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
Weight & dimensions2 differ
WidthDiffers	102 mm	175 mm
DepthDiffers	410 mm	417 mm
Height	360 mm	360 mm
WeightKnown for one	Unknown — not stated by the source	8.87 kg
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
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.

More pcs/workstations comparisons

All pcs/workstations comparisons