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Black ultra-small desktop tower with silver accents, DVD-RW slot, USB keyboard and mouse included

DELL

DELL OptiPlex 790 USFF i5-2400 3.10GHz 4GB DDR3 128GB SSD

SKU CH-J7E7-6BHXQ

Ultra-small desktop with a quad-core Intel i5-2400 at 3.10GHz, 4GB DDR3, 128GB SSD, DVD-RW, Windows 10 Pro 64-bit, USB keyboard and mouse included

  • Screen sizeNo Screen
  • ProcessorIntel Core i5 2nd Gen
  • Memory size4 GB DDR3 RAM
  • Storage drive128 GB Solid State Hard Drive (SSD)
  • GraphicsIntel HD Graphics 2000
  • ChipsetIntel Q57 Express chipset
  • Quad-core 2nd Gen Intel i5-2400 at 3.10GHz handles everyday multitasking
  • 128 GB SSD provides fast boot and application load times
  • 4 GB DDR3 memory supports smooth office and web workflows
  • Windows 10 Pro 64-bit pre-installed for immediate productivity
  • DVD-RW drive plus USB keyboard and mouse included for ready-to-use setup

Ultra-small desktop for home and office

The Dell OptiPlex 790 USFF is an ultra-small form factor desktop built around a 2nd Gen Intel quad-core i5-2400 processor running at 3.10 GHz. It ships with 4 GB of DDR3 memory and a 128 GB solid state drive for fast boot and application load times. Windows 10 Professional 64-bit is pre-installed, and a USB keyboard and mouse are included in the box.

Best for everyday tasks, not for heavy workloads

This system suits students, home-office users and anyone needing a compact PC for web browsing, document editing and media playback. Integrated Intel HD Graphics 2000 handles basic video output but cannot drive modern games or GPU-accelerated creative work. Buyers who need more memory, additional storage bays or discrete graphics should look at larger form factors.

128 GB SSD capacity decides fit

The 128 GB solid state drive determines whether this desktop can hold your operating system, applications and active files without external storage. If your workflow demands a larger local library, you will need to add drives or choose a system with greater capacity.

How it compares

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

Price $89.99
Cheaper than about 97% 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 drive128 GB Solid State Hard Drive (SSD)
Hard driveNo
Disc drive16X DVD±RW Drive
Drive interfaceSATA
Optical driveDVD±RW
Display
Screen sizeNo Screen
Graphics
GraphicsIntel HD Graphics 2000
GPUIntel HD Graphics 200
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

Questions about this item

How much fan noise and heat does the ultra-small Dell OptiPlex 790 produce when the Intel Core i5-2400 runs all day?

The ultra-small form factor uses a compact internal power supply and a low-profile cooler designed for the 3.10 GHz quad-core CPU; under continuous load the single system fan spins up only enough to keep the Intel HD Graphics 2000 and Q57 Express chipset within thermal limits, so noise stays at a quiet office level.

What display cable must I already own to connect a monitor to the Intel HD Graphics 2000 output on this Dell OptiPlex 790?

The integrated Intel HD Graphics 2000 provides a VGA port and a DisplayPort connector; you will need a VGA cable or a DisplayPort cable that matches the monitor input you plan to use.

Can I keep my existing DDR3 memory modules when upgrading the 4 GB of RAM installed in this OptiPlex 790?

Yes — the system uses DDR3 DIMMs, so any compatible DDR3 sticks you already have can be added to the two available slots up to the board's maximum capacity.

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