Gaming PCCPU, motherboard, graphics card, memory, SSD, power supply, case and cooler, each priced from today's eBay listings.WorkstationThreadripper, Xeon or EPYC, server memory, a big GPU and fast NVMe: the parts behind local AI and rendering boxes.Home server / NASA used rack or tower server, drives, an HBA and a NIC: the classic homelab storage box.Mini PCA used 1-liter PC plus laptop memory and an NVMe drive: a quiet, cheap home server or office box.Solar + battery systemPanels by the watt, an inverter, and LiFePO4 storage by the kWh, at today's typical prices.
More calculators: rent vs buy a GPU, solar and battery payback →