How the gpu buy vs rent calculator works
Owning has a large upfront cost but low running costs; renting has no upfront cost but you pay for every hour. Break-even is when cumulative cloud spending would equal the purchase price plus your electricity.
Power cost/yr = kW × Hours × 365 × $/kWh × PUE
Break-even (days) = Purchase price ÷ Daily savings
PUE (power usage effectiveness) accounts for cooling and power delivery; 1.1 to 1.5 is typical. The model leaves out staff time, networking, colocation fees, financing and resale value, and assumes cloud and owned hardware are equally fast. Utilization matters most: hardware that sits idle never pays for itself, while round-the-clock training often breaks even within a year or two.
Worked example
A $30,000 GPU server share used 12 hours a day replaces $2.50/hour cloud time costing $10,950 a year. Owning costs about $598 a year in electricity at 15 cents per kWh and a 1.3 PUE. The daily saving of about $28 pays back the purchase in roughly 1,058 days (2.9 years). At 24 hours a day, break-even falls to about 1.4 years.
Frequently asked questions
Is it cheaper to buy or rent GPUs?
Buying is usually cheaper at high, steady utilization; renting wins for bursty or uncertain workloads.
What is PUE?
Power usage effectiveness: total facility power divided by IT power. 1.0 would mean no cooling overhead.
How much power does a data-center GPU use?
High-end accelerators draw roughly 300 W to 1,000 W each, plus the server around them.
Does resale value matter?
Yes. Selling used hardware recovers part of the cost and shortens the effective break-even.
Updated October 2026. Results are estimates for education, not financial or medical advice. All math runs in your browser; nothing you type is sent anywhere.