What processors does the Dell OptiPlex 7070 SFF support?

The Dell OptiPlex 7070 SFF runs 9th Gen Intel Core i3, i5, i7, and i9 processors, including the i9-9900, with backward BIOS compatibility for 8th Gen CPUs. It uses LGA 1151 and has a 65W TDP ceiling, so it handles high-end Coffee Lake Refresh chips without issue.