DELL OptiPlex 790 SFF Desktop PC i5 4 GB 1 TB HDD Windows 10 Pro

Compact desktop for everyday tasks

The Dell OptiPlex 790 SFF is a small-form-factor desktop built around an Intel quad-core i5 processor running between 2.9 and 3.3 GHz. It ships with 4 GB of DDR3 memory, a 3.5-inch 1000 GB hard drive and Windows 10 Pro 64-bit already installed. A DVD-RW drive, USB keyboard and USB mouse are included in the box. The integrated Intel HD Graphics 2000 handles basic display output and Gigabit Ethernet provides wired networking.

Upgrade from older dual-core or single-core systems

Replacing a machine limited to two cores or less brings a noticeable lift in multi-tasking responsiveness thanks to four processing threads. The 1000 GB hard drive adds substantially more room for documents, photos and applications than smaller legacy drives. The jump is most worthwhile when the current PC struggles with several browser tabs, office suites or light media playback at the same time.

Verify DDR3 memory slots and SATA drive bays

The motherboard uses 240-pin DDR3 DIMM slots with a maximum supported capacity of 16 GB, so any additional memory must be DDR3. Storage expansion requires a free 3.5-inch SATA bay and a spare SATA data cable. The small-form-factor chassis limits full-height expansion cards, so confirm that any add-in card you plan to install fits the low-profile bracket.