DELL OptiPlex 790 SFF desktop PC i5 4 GB 128 GB SSD Windows 10 Pro

Compact desktop for everyday tasks

The Dell OptiPlex 790 SFF is a small-form-factor PC built around a quad-core Intel i5 running at 2.9 GHz to 3.30 GHz. It ships with 4 GB of DDR3 memory and a 128 GB 2.5-inch SSD. Windows 10 Pro 64-bit is pre-installed and activated, so the system is ready for office applications, web browsing and light multitasking straight out of the box.

Thermals and power in daily use

The SFF chassis uses the stock Intel cooler and a single rear exhaust fan to move air across the Q65 Express chipset and integrated Intel HD Graphics 2000. Under typical office loads the processor stays within its rated turbo range of 2.90 GHz to 3.10 GHz without audible fan ramping. Power draw remains modest because the platform lacks a discrete graphics card and the SSD eliminates mechanical drive spin-up.

Included peripherals and expandability

A USB keyboard and USB mouse are bundled, removing the need for separate input purchases. The DVD-RW drive reads and writes CDs and DVDs for legacy media or software installation. Integrated Gigabit Ethernet provides wired networking, while Wi-Fi and Bluetooth are also present. Two DIMM slots support up to 16 GB of DDR3 if more memory is required later.