Results: AMD Ryzen 9 7900X + Radeon RX 7900 XTX
AMD Ryzen 9 7900X and Radeon RX 7900 XTX paired: expected FPS in 10 games at 1080p, 1440p and 4K, bottleneck analysis and the recommended power supply wattage.
Prices in shops
Prices checked:
Prices at UK shops today
Stock and prices come from UK shops we track (Back to the Office, GamingKit, PCHUB.UK). Prices are in pounds and include VAT.
- AMD Ryzen 9 7900X: from £280.85 at GamingKit, 3 listings up to £359.24. Lowest in the last 30 days: £243.91.
What it costs to run in the UK
At full load the pair draws about 525 W. At 26.32p per kWh (Ofgem energy price cap, October to December 2026) that is £0.14 an hour of play, or about £101 a year at 2 hours a day.
Expected FPS
Average FPS on “High” settings
| 1080p FPS | 1440p FPS | 4K FPS | |
|---|---|---|---|
| Fortnite | 315 FPS | 260 FPS | 160 FPS |
| Counter-Strike 2 | 550 FPS | 430 FPS | 265 FPS |
| Cyberpunk 2077 | 170 FPS | 140 FPS | 85 FPS |
| Valorant | 655 FPS | 595 FPS | 365 FPS |
| COD: Warzone | 205 FPS | 205 FPS | 140 FPS |
| Battlefield 6 | 170 FPS | 170 FPS | 105 FPS |
| PUBG: Battlegrounds | 290 FPS | 250 FPS | 155 FPS |
| Rainbow Six Siege | 420 FPS | 345 FPS | 215 FPS |
| Marvel Rivals | 150 FPS | 110 FPS | 65 FPS |
| GTA V | 135 FPS | 110 FPS | 65 FPS |
| Red Dead Redemption 2 | 165 FPS | 160 FPS | 100 FPS |
| Escape from Tarkov | 100 FPS | 100 FPS | 80 FPS |
| Rust | 130 FPS | 130 FPS | 80 FPS |
| Minecraft | 415 FPS | 415 FPS | 415 FPS |
Bottleneck by resolution
Which component limits performance at each resolution
Power supply
Estimated load: 740 W · Recommended: 900 W
Put together a compatible build or compare component prices across retailers.
Other graphics cards with AMD Ryzen 9 7900X
Other processors with Radeon RX 7900 XTX
Other comparisons
The figures are estimates - real FPS depends on the game, settings and drivers. The FPS model is calibrated against public TechPowerUp, Tom’s Hardware and Hardware Unboxed benchmarks. CPU and GPU calibration: July 2026 · Newest games added: September 2026. How we calculate FPS