Hardware TCO Sample Build: RTX 3090 24GB (used market, ~$700–800) Component Cost RTX 3090 (used) $750 Host server (Proxmox, used workstation) $400 32 GB RAM $80 1 TB NVMe $80 Power (600W system × 8h/day × $0.12/kWh) ~$21/month One-time hardware ~$1,310 Monthly power ~$21 Break-even calculation — you need to compare against API costs you’d otherwise pay. RTX 4060 Ti 16GB Build (~Budget) Component Cost RTX 4060 Ti 16GB $450 Mini PC / used workstation $200 16 GB RAM $40 512 GB NVMe $50 Power (250W × 8h × $0.