DELL OptiPlex 790 Desktop i5-2400 3.1GHz 16GB 480GB SSD

Business desktop for office tasks

The Dell OptiPlex 790 is a business desktop built around a quad-core Intel Core i5 2400 running at 3.1 GHz with 16 GB of DDR3 memory and a 480 GB SATA SSD. It ships with Windows 10 Home 64-bit and includes a DVD-RW drive. The integrated Intel HD 2000 graphics drive DisplayPort and VGA outputs for dual-monitor setups. This configuration suits general office productivity, web browsing and legacy business applications.

Sustained load behaviour

The 6 MB L3 cache and four cores handle multi-threaded office workloads such as large spreadsheets or background updates without relying on short turbo bursts. The SATA SSD keeps the operating system and applications responsive during extended sessions. Passive cooling on the integrated graphics means there is no dedicated GPU to throttle under continuous use. Gigabit Ethernet provides a stable wired connection for network-heavy tasks.

Installation and common issues

The desktop form factor uses standard SATA power and data cables, so adding or replacing the 480 GB drive is straightforward. Eight USB ports and legacy serial and parallel ports are exposed on the chassis for peripheral connectivity. No wireless card is fitted, so Wi-Fi requires a separate USB or PCIe adapter. The included Windows 10 licence is tied to the hardware; a clean reinstall uses the same edition without entering a key.