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 DVD drive

DELL

DELL OptiPlex 790 Mini Tower i5-2400 3.10GHz 16GB DDR3 1TB HDD

SKU CH-W0MR-X56CB

A mini-tower desktop with a quad-core i5-2400 at 3.10GHz, 16GB DDR3, 1TB hard drive, DVD±RW, WiFi USB adapter and Windows 10 Pro

  • 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 16GB DDR3

  • Quad-core Intel i5-2400 at 3.10 GHz handles everyday tasks
  • 16 GB DDR3 memory keeps multiple programs responsive
  • 1 TB 3.5-inch SATA hard drive stores large file collections
  • DVD±RW drive reads and writes optical media
  • Windows 10 Pro 64-bit pre-installed with licence certificate

OptiPlex 790 Mini Tower Desktop

The Dell OptiPlex 790 is a Mini Tower desktop computer built for student and home-office use. It ships new with a 64-bit quad-core Intel Core i5-2400 processor running at 3.10 GHz, 16 GB of DDR3 memory and a 1 TB 3.5-inch SATA hard drive. Windows 10 Pro 64-bit is pre-installed with a Certificate of Authenticity. A DVD±RW drive, USB keyboard and USB mouse are included in the box.

Who this suits and who it does not

This system suits buyers who need a ready-to-use desktop for everyday office tasks, web browsing and video playback. Integrated Intel HD Graphics 2000 handles basic display output only, so users who require discrete graphics performance for gaming or GPU-accelerated workloads should look elsewhere. All four DIMM slots are populated, leaving no room for memory expansion beyond the installed 16 GB.

Deciding specification — 16 GB DDR3 limit

The motherboard supports a maximum of 16 GB of DDR3 memory across four 240-pin slots and every slot is already filled with a 4 GB module. This fixed ceiling determines whether the computer can meet your multitasking needs or if a platform with higher memory capacity is required.

Highlights

  • Quad-core Intel i5-2400 at 3.10 GHz handles everyday tasks
  • 16 GB DDR3 memory keeps multiple programs responsive
  • 1 TB 3.5-inch SATA hard drive stores large file collections
  • DVD±RW drive reads and writes optical media
  • Windows 10 Pro 64-bit pre-installed with licence certificate

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
Memory16 GB DDR3 Desktop RAM
Storage3.5" 1000 GB 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 Capacity16GB DDR3
Memory SpeedDDR3
Memory Spec4 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
Weight12 Lbs.

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

Should I choose 4, 8, or 16 GB of DDR3 for the OptiPlex 790?

This unit ships with 16 GB DDR3 installed across four slots, reaching the 16 GB maximum the board supports. No further memory can be added.

What does the 3.10 GHz i5-2400 actually deliver in daily use?

The second-generation quad-core runs at 3.10 GHz base with a 3.30 GHz turbo, handling office apps, web browsing and 1080p video smoothly within its 64-bit architecture.

How does the SATA interface limit the 1 TB hard drive?

The 3.5-inch 1000 GB drive connects via SATA, capping sequential throughput at the bus limit and making boot and load times slower than an SSD would be.

Also in this aisle

People compared these

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