How much does an RX 7900 XTX cost to run?
About $6.34 a month for a whole RX 7900 XTX gaming PC used 4 hours a day (half gaming) with one monitor, at the US average rate of 18.16 ¢/kWh. Estimates, not measurements.
Monthly cost by location
4 h/day, 50% gaming, 1 monitor, typical 6-core CPU, 80 PLUS Gold PSU.
| Location | Rate | Per gaming hour | Per month | Per year |
|---|---|---|---|---|
| US average | 18.16¢ | $0.083 | $6.34 | $76 |
| Texas | 15.91¢ | $0.072 | $5.56 | $67 |
| California | 29.75¢ | $0.135 | $10.39 | $125 |
| New York | 28.65¢ | $0.130 | $10.01 | $120 |
| Florida | 14.99¢ | $0.068 | $5.23 | $63 |
| Nevada (cheapest state) | 12.72¢ | $0.058 | $4.44 | $53 |
| Hawaii (most expensive state) | 47.18¢ | $0.215 | $16.48 | $198 |
| United Kingdom (USD) | 40.50¢ | $0.184 | $14.14 | $170 |
| Germany (USD) | 40.90¢ | $0.186 | $14.28 | $171 |
| Canada (USD) | 12.30¢ | $0.056 | $4.30 | $52 |
| Australia (USD) | 25.90¢ | $0.118 | $9.04 | $109 |
Heavier use at the US average: 8 h/day, 75% gaming ≈ $16.35/month. Running at full load 24/7 (rendering, AI, mining) ≈ $74/month.
Test your own RX 7900 XTX PC (30 s)Watts for an RX 7900 XTX PC
| State | GPU only | Whole PC at the wall |
|---|---|---|
| Idle / desktop | ~26 W | ~74 W |
| Typical gaming | ~302 W | ~430 W |
| Full load | 355 W | ~561 W |
FAQ
How many watts does an RX 7900 XTX use?
NVIDIA/AMD/Intel rate the reference RX 7900 XTX at 355 W board power. In games it typically draws less than its rating; we model about 302 W gaming and 26 W at idle. Factory-overclocked cards can draw more.
How much does it cost to run an RX 7900 XTX PC per hour?
About $0.083 per gaming hour for the whole PC plus one monitor at the US average 18.16 ¢/kWh (August 2026, EIA). That is an estimate with a typical 6-core CPU and a Gold PSU.
What PSU do I need for an RX 7900 XTX?
Full-load draw for a typical RX 7900 XTX build is about 561 W at the wall. Check the card maker's recommended PSU wattage; it usually adds headroom for spikes.
Get real readings. This page can only estimate. The free PCWatts desktop app reads your GPU's actual watts while you play and turns them into dollars per game, per day and per month.
Download PCWatts for Windows (coming soon)