The Dell OptiPlex 390 and the Dell OptiPlex 380 -- released in 2007 and 2009, respectively -- are desktop PCs from Dell's OptiPlex line of corporate-, education- and government-oriented computers. Both are mainly based on the Microsoft Windows operating system. Generally, the OptiPlex 390 is designed as the superior offering over the OptiPlex 380.
Processor, Chipset and System Memory
The Dell OptiPlex 390 uses a dual-core processor from Intel's low-end Celeron brand or midrange Pentium brand; or dual-core chip or quad-core chip from the low-end i3 and mid-range i5 division, respectively, of the premier Core brand. In addition to the dual-core Celeron and Pentium processors, the Dell OptiPlex 380's dual- and quad-core CPU choices come from the Core 2, which is the less-advanced, immediate predecessor of the Core i series. The chipsets are the Intel H61 Express and the Intel G41 Express in the 390 and the 380, respectively. Maximum system memory is 8 gigabytes on the 390 and 4GB on the 380.
Storage and Video/Graphics
The maximum hard disk drive capacity is measured at 1 terabyte on the Dell OptiPlex 390 and 500GB on the Dell OptiPlex 380. Regarding video and graphics capabilities, the most advanced option customers can get on the OptiPlex 390 is an AMD Radeon HD 6450, which offers 1GB of dedicated memory. The top-level option for the OptiPlex 380 is split between the AMD Radeon HD 3450 and the Nvidia GeForce 9300 GE, both of which provide 256 megabytes of memory.
Networking and Connectivity
Each Dell OptiPlex 390 and Dell OptiPlex 380 has a standard Ethernet connection -- Realtek brand for the former, Broadcom for the latter -- that provides up to 1 gigabit in data transfer speed. The external connectors include the Ethernet's RJ-45 jack, eight USB 2.0 ports, a Video Graphics Array connector for hooking up the computer monitor, and headphone and microphone jacks.
Models
Each Dell OptiPlex 390 and Dell OptiPlex 380 is available in three designs: the mini-tower, desktop and small form factor. The OptiPlex 390, however, is more compact than the OptiPlex 380. The 390's mini-tower, desktop and small form factor -- in terms of height, weight and depth -- have measurements of 14.2 by 6.9 by 16.4 inches, 14.2 by 4.0 by 16.1 inches and 11.4 by 3.7 by 12.3 inches, respectively. The weight of each design is 19.55 lbs., 16.67 lbs. and 12.57 lbs. The OptiPlex 380's three models have measurements of 16.1 by 7.4 by 17.0 inches, 15.7 by 4.5 by 13.9 inches and 12.4 by 3.7 by 13.4 inches, with the weight at 26.5 lbs., 19.8 lbs. and 15.4 lbs.
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