Both minis sport a 67% smaller frame than any other Dell micros, measuring 7.25 x 1.4 x 7 inches, weighing in at just 3lbs, and can be mounted using a variety of brackets and stands. The higher-end OptiPlex 9020 doesn't have that many details yet, however we do know that two options will use Intel's 5th and 7th gen processors, come with a 2.5-inch hard drive and M.2 SSD storage options, Intel HD Graphics, DisplayPort, and VGA jacks (perfect for running multiple monitors) (PC Mag). It's starting price will be $699, and it will come with Windows 7.
If you like low-profile, quiet, and the idea of your desktop not taking up half your desk (or crowding your feet under), it's still possible to not have to give up on power. Mini PCs are proving to sustain all the abilities that regular-sized PCs do. Although sticking with the OptiPlex 3020 will still get you all you need, upgrading to the Core i5 configuration will be better for anyone interested in a little more premium stuffed in that tiny box.