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Black Dell OptiPlex 3090 tower with dual 24-inch monitors, keyboard and mouse

DELL

DELL OptiPlex 3090 desktop PC i7-10700 16GB DDR3 500GB SSD 500GB HDD Windows 11 Pro dual 24" monitors

SKU CH-W8Q7-CRPW3

A desktop PC with a 10th Gen Core i7, 16 GB DDR3, 500 GB SSD plus 500 GB HDD, Windows 11 Pro and dual 24″ monitors

  • ProcessorIntel Core i7 10th Gen
  • Memory size16 GB
  • SSD storage500 GB
  • CPUIntel 10th Generation Core i7
  • RAM capacity16 GB DDR3
  • Operating systemWindows 11 Pro
  • Intel Core i7-10700 octa-core processor powers demanding workloads
  • 16 GB DDR3 memory supports smooth multitasking
  • 500 GB SSD plus 500 GB HDD combines speed with capacity
  • Windows 11 Pro pre-installed for modern security and management
  • Dual 24-inch monitors expand screen real estate instantly

Complete Desktop Workstation

The Dell OptiPlex 3090 arrives as a ready-to-use system built around an Intel Core i7-10700 processor with 16 GB of DDR3 memory. It includes a 500 GB SSD and a 500 GB SATA hard drive for combined speed and capacity. Windows 11 Pro is pre-installed alongside Wi-Fi and Bluetooth connectivity. Two 24-inch monitors, a wired keyboard and a USB mouse complete the package for immediate productivity.

Ideal for Office and Home Users

This configuration suits professionals, students and families who need a single purchase that covers the tower, displays and input devices for everyday tasks such as document work, video calls and web browsing. The integrated graphics and fixed memory layout make it unsuitable for buyers who want more storage bays, discrete GPU performance or the ability to install faster memory modules beyond the supported DDR3 standard.

Memory Generation Determines Upgrade Path

The system uses DDR3 memory in a single 16 GB module with one additional slot available, allowing expansion up to the 64 GB maximum supported by the platform. Only DDR3 modules are compatible; DDR4 sticks will not fit. Verifying this generation before purchasing additional RAM ensures the upgrade will work correctly.

How it compares

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

Price $582.99
Pricier than about 56% of the 14,711 comparable items (median $494.99).
Memory size 16 GB
Typical for this category: the median of 5,840 items is 16 GB.
RAM capacity 16 GB DDR3
Typical for this category: the median of 13,125 items is 16 GB.

Specifications

Product
Brand nameDELL
Product lineOptiPlex
Year of release2020
Product colorBlack
Processor
ProcessorIntel Core i7 10th Gen
CPUIntel 10th Generation Core i7
CPU modelIntel Core i7-10700
Memory
Memory size16 GB
RAM capacity16 GB DDR3
Memory configuration16 GB x 1
Total memory slots2
Max supported RAM64 GB
Storage
SSD storage500 GB
Hard drive500 GB
Drive interfaceSATA
Size & build
Form factorDesktop
In the box
Pointing deviceUSB Mouse
In the box5G wifi/bluetooth adapter,wired gaming keyboard and mouse,dual 24 in monitors
Software
Operating systemWindows 11 Pro
More details
Keyboard typeStandard

Questions about this item

How do I install the DDR3 memory module in the OptiPlex 3090, and which step is often missed?

Power off the PC, open the chassis, align the notch on the 16 GB DDR3 stick with the slot key, press firmly until the retention clips click, then close the case; the step most people miss is seating the module fully so both clips engage automatically.

What maintenance or replacement will the 500 GB SATA hard drive need later?

The 500 GB SATA HDD is a mechanical drive that will eventually wear out; plan to replace it with another SATA drive and reinstall Windows 11 Pro when SMART warnings appear or performance drops noticeably.

What limit appears first on the Core i7-10700 during sustained heavy workloads?

The processor will hit its thermal ceiling and reduce clock speeds to stay within safe temperatures, so sustained all-core performance is limited by the cooling capacity of the 3090 chassis.

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