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Compact black and silver desktop tower with DVD drive and included keyboard and mouse

DELL

DELL OptiPlex 790 USFF i5-2400 3.10GHz 4GB DDR3 500GB desktop PC

SKU CH-4T0P-3XCCN

Ultra-small desktop with a quad-core i5-2400 at 3.10 GHz, 4 GB DDR3, 500 GB hard drive, DVD-RW, Windows 10 Pro, keyboard and mouse

  • Screen sizeNo Screen
  • ProcessorIntel Core i5 2nd Gen
  • Memory size4 GB DDR3 RAM
  • Storage drive500 GB Hard Drive
  • GraphicsIntel HD Graphics 2000
  • ChipsetIntel Q57 Express chipset

SSD None

HDD 500GB

  • Quad-core i5-2400 at 3.10 GHz handles multitasking
  • 4 GB DDR3 memory supports everyday workloads
  • 500 GB hard drive stores documents and media
  • 16X DVD±RW reads and writes optical discs
  • Windows 10 Pro 64-bit pre-installed for immediate use

Ultra-small desktop for everyday tasks

The Dell OptiPlex 790 USFF packs a 2nd generation Intel quad-core i5-2400 running at 3.10 GHz, 4 GB of DDR3 memory and a 500 GB hard drive into a compact black and silver chassis. Windows 10 Professional 64-bit is pre-installed and a USB keyboard plus mouse are included, so the system is ready for immediate use in a home office or classroom.

Suits general office work, not heavy workloads

This unit handles web browsing, document editing and video playback comfortably, but the integrated Intel HD Graphics 2000 and modest memory capacity limit 3D rendering, modern gaming or large dataset processing. Buyers who need discrete graphics performance, more than 4 GB of RAM or faster solid-state storage should look at a different configuration.

DDR3 memory defines upgrade options

The motherboard accepts only DDR3 modules, so any memory expansion must use that generation; other DDR types will not fit. Two USB 2.0 ports, Gigabit Ethernet, a 16X DVD±RW drive and legacy PCI plus PCI Express x16 slots provide connectivity for peripherals and internal add-in cards.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $190.99
Cheaper than about 90% of the 14,711 comparable items (median $494.99).
Memory size 4 GB DDR3 RAM
Lower than about 97% of the 5,840 comparable items (median 16 GB).
RAM capacity 4 GB DDR3
Lower than about 95% of the 13,125 comparable items (median 16 GB).

Specifications

Product
Brand nameDELL
Product lineOptiPlex
Model name790
Part number790
Product typeStudent / Home Office
Recommended useConsumer
Product colorBlack/Silver
Processor
ProcessorIntel Core i5 2nd Gen
CPUIntel 2nd Gen QUAD Core i5 Processor
CPU socketLGA 1155
ChipsetIntel Q57 Express chipset
Memory
Memory size4 GB DDR3 RAM
RAM capacity4 GB DDR3
RAM type and speedDDR3
Memory configuration2 GB x 2
Total memory slots2
Free memory slots0
Memory slots0/2
Max supported RAM8 GB
Storage
Storage drive500 GB Hard Drive
SSD storageNo
Hard drive500 GB
Disc drive16X DVD±RW Drive
Drive interfaceSATA
Optical driveDVD±RW
Display
Screen sizeNo Screen
Graphics
GraphicsIntel HD Graphics 2000
GPUIntel HD Graphics 2000
Audio & video
SoundSound card - Integrated
Connectivity
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Ethernet controllerIntegrated
Ports & slots
Front USB ports2
Front audio jacks1
Video connectors1 VGA, 1 Display Port
Rear USB ports5
Ethernet port1 port
Rear audio jacks1x Headphone, 1x Microphone, 1x Line In
Size & build
Form factorUltra Small
Overall dimensions3 × 4 × 10
In the box
Included monitorNot included
Bundled mouseYes (USB)
Pointing deviceUSB Mouse
Software
Operating systemWindows 10 Pro
Pre-installed softwareWindows 10 Pro Restore Media
More details
KeyboardYes (USB)
Keyboard typeUSB Keyboard

Other versions of this model

5 more in the same range

Questions about this item

Will my existing DDR3 memory modules work alongside the installed 4 GB?

The system uses DDR3 memory; any added modules must match that type and the motherboard's maximum supported capacity.

How can I verify the Intel HD Graphics 2000 is active after setup?

Open Device Manager in Windows 10 Pro and confirm Intel HD Graphics 2000 appears under Display adapters with no error icon.

Does the box include a monitor or must I supply my own?

A USB keyboard and USB mouse are included; a monitor is not included and must be provided separately.

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