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Black Dell Optiplex 790 desktop tower with DVD drive and USB ports

DELL

DELL Optiplex 790 desktop PC i5-2400 3.1GHz 16GB DDR3 500GB HDD Windows 10 Pro

SKU CH-NSNP-ZS17Y

Business desktop with a quad-core i5-2400 at 3.1 GHz, 16 GB DDR3, 500 GB hard drive and Windows 10 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core i5 2nd Gen
  • RAM capacity16 GB DDR3
  • SSD storageNo
  • GraphicsIntel HD Graphics 2000
  • CPU modelIntel Core i5-2400
  • Ready for business tasks with Intel Core i5-2400 quad-core processor
  • Smooth multitasking backed by 16GB DDR3 memory
  • Ample file space provided by 500GB hard drive
  • Windows 10 Pro 64-bit pre-installed for professional use
  • Connect peripherals easily using six rear USB ports

Business desktop with quad-core i5

The Dell Optiplex 790 is a business-oriented desktop computer powered by an Intel Core i5-2400 quad-core processor running at 3.1 GHz. It comes with 16 GB of DDR3 memory and a 500 GB hard drive. Windows 10 Pro 64-bit is pre-installed and a DVD-ROM drive is fitted. Integrated Intel HD Graphics 2000 handles video output via VGA.

Suited for office tasks, not for heavy graphics

This system suits users who need a reliable machine for everyday productivity, web browsing and legacy business applications. The quad-core CPU and 16 GB of RAM provide responsive multitasking for typical office workloads. Buyers who require dedicated graphics performance for modern gaming, video editing or GPU-accelerated workloads should look elsewhere. The integrated graphics and mechanical hard drive limit performance in those scenarios.

16 GB DDR3 memory installed

The desktop ships with 16 GB of DDR3 system memory already installed. This capacity supports smooth multitasking with multiple business applications open simultaneously. Memory type and capacity are fixed by the platform, so buyers needing a different memory generation or higher capacity must choose another system.

How it compares

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

Price $233.99
Cheaper than about 83% of the 14,711 comparable items (median $494.99).
RAM capacity 16 GB DDR3
Typical for this category: the median of 13,125 items is 16 GB.

Specifications

Product
Model name790
Product typeBusiness Desktops & Workstations
Recommended useBusiness
Product colorBlack
Processor
ProcessorIntel Core i5 2nd Gen
CPU modelIntel Core i5-2400
Memory
RAM capacity16 GB DDR3
Storage
SSD storageNo
Hard drive500 GB
Optical driveDVD-ROM
Display
Screen sizeNo Screen
Graphics
GraphicsIntel HD Graphics 2000
Connectivity
Ethernet controllerIntegrated
Ports & slots
Rear USB ports6
Ethernet port1 port
Rear audio jacks2 ports
Size & build
Form factorDesktop
In the box
Included monitorNot included
Pointing deviceUSB Mouse
Software
Operating systemWindows 10 Pro
More details
Keyboard typeUSB Keyboard

Questions about this item

How do I install the 16GB DDR3 memory in the Optiplex 790, and what is the common mistake?

The Optiplex 790 desktop has four DDR3 slots; install modules in matched pairs starting with the black slots first, as populating the blue slots alone prevents dual-channel operation.

Which component in the Dell Optiplex 790 will most likely need replacement after several years of daily use?

The 500GB mechanical hard drive is the primary wear item; its spinning platters and actuator arm degrade over time, so plan to migrate the OS to a solid-state drive later.

What performance limit appears first when the Intel Core i5-2400 runs sustained workloads in this chassis?

The integrated Intel HD Graphics 2000 shares system memory and thermal headroom with the CPU, so graphics-intensive tasks hit thermal throttling before the processor reaches its maximum turbo frequency.

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