We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black and silver Dell OptiPlex 790 mini tower desktop with keyboard and mouse

DELL

DELL OptiPlex 790 Mini Tower i5-2400 3.10GHz 4GB DDR3 1TB desktop PC

SKU CH-Q6DQ-RDK1X

A compact mini-tower desktop with a quad-core i5-2400 processor, 4 GB DDR3 memory, 1 TB SATA storage, DVD±RW drive and Windows 10 Pro pre-installed

  • TypeStudent / Home Office
  • Form FactorDIMM 240-pin
  • UsageConsumer
  • ColorBlack/Silver
  • ProcessorIntel Quad-Core i5 (2.9GHz-3.30GHz)
  • Processor Main Features64 bit Quad-Core Processor

Memory Capacity 4GB DDR3

  • Quad-core i5-2400 at 3.10 GHz handles everyday tasks
  • 4 GB DDR3 memory supports smooth multitasking
  • 1 TB SATA hard drive stores large file collections
  • DVD±RW drive reads and writes optical media
  • Windows 10 Pro 64-bit installed with keyboard and mouse included

OptiPlex 790 Mini Tower Desktop

The Dell OptiPlex 790 is a mini-tower desktop built around an Intel Core i5-2400 quad-core processor running at 3.10GHz with a turbo frequency of 3.40GHz. It ships with 4GB of DDR3 memory and a 1TB 3.5-inch SATA hard drive. Windows 10 Pro 64-bit is pre-installed, and a USB keyboard and mouse are included.

Home office users and students seeking

This configuration suits buyers who need a complete Windows 10 Pro workstation for everyday productivity, web browsing and light multitasking out of the box. The integrated Intel HD Graphics 2000 and 4GB of RAM limit its suitability for modern gaming, video editing or heavy multitasking workloads. Buyers who need more memory capacity, discrete graphics performance or faster storage should look at other options.

4GB DDR3 memory configuration

The system arrives with 4GB of DDR3 RAM installed in a DIMM 240-pin form factor. Manufacturer highlights indicate the platform supports upgrades to 8GB or 16GB of DDR3, so the installed amount is the key specification that determines whether the machine meets immediate workload demands or requires additional modules before deployment.

Highlights

  • Quad-core i5-2400 at 3.10 GHz handles everyday tasks
  • 4 GB DDR3 memory supports smooth multitasking
  • 1 TB SATA hard drive stores large file collections
  • DVD±RW drive reads and writes optical media
  • Windows 10 Pro 64-bit installed with keyboard and mouse included

Specifications

BrandDELL
SeriesOptiPlex
Model790
Part Number790/990 Series
TypeStudent / Home Office
Form FactorDIMM 240-pin
UsageConsumer
ColorBlack/Silver
ProcessorIntel Quad-Core i5 (2.9GHz-3.30GHz)
Processor Main Features64 bit Quad-Core Processor
Memory4 GB DDR3 Desktop RAM
Storage1000 GB (1TB) 3.5" SATA Hard Drive
Optical DriveDVD±RW Drive
GraphicsIntel HD Graphics 2000
AudioSound card - Integrated
EthernetGigabit Ethernet
Wireless CardWiFi USB Adapter
CaseMini Tower
KeyboardUSB
MouseUSB
Operating SystemWindows 10 Pro
Software IncludedWindows 10 Pro Restore Media
ChipsetIntel Q67
CPU TypeIntel Core i5 2nd Gen
Installed Qty1
Max Supported Qty1
CPU Main Features64 bit Quad-Core Processor
GPU/VGA TypeIntel HD Graphics 2000
Graphics InterfaceIntegrated video
Memory Capacity4GB DDR3
Memory SpeedDDR3
Memory Spec1 GB x 4
Memory Slot (Total)4
Memory Slot (Available)0
Memory Slots (Available/Total)0/4
Maximum Memory Supported16 GB
SSDNo
HDD1TB
HDD InterfaceSATA
Optical Drive TypeDVD±RW
Screen SizeNo Screen
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
WLAN802.11 Wireless LAN
Front USB4
Front Audio Ports2
Video Ports1 VGA, 1 Display Port
Rear USB6
Rear IEEE 13941 port
RJ451x Headphone, 1x Microphone, 1x Line In
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse
Dimensions (H x W x D)11.4 x 3.7 x 12.3

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How far can the Intel i5-2400 turbo boost reach before thermal throttling becomes the limiting factor?

The processor can turbo up to 3.40 GHz, but sustained all-core loads will likely hold lower clocks once the Mini Tower cooler saturates.

What are the typical noise and heat levels when the system runs continuously under load?

The stock cooler in the Mini Tower chassis spins up audibly under sustained load; expect noticeable fan noise and warm exhaust air from the rear vent.

Which DDR3 memory modules must I already have to expand the RAM beyond the installed 4 GB?

You need unbuffered non-ECC DDR3 DIMMs (240-pin) to fill the remaining slots up to the 16 GB maximum supported by the board.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.