Results: AMD Ryzen 7 9800X3D + GeForce RTX 4090
AMD Ryzen 7 9800X3D and GeForce RTX 4090 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 7 9800X3D: from £412.13 at GamingKit, 3 listings up to £431.08. Lowest in the last 30 days: £374.92.
What it costs to run in the UK
At full load the pair draws about 570 W. At 26.32p per kWh (Ofgem energy price cap, October to December 2026) that is £0.15 an hour of play, or about £110 a year at 2 hours a day.
Expected FPS
Average FPS on “High” settings
| 1080p FPS | 1440p FPS | 4K FPS | |
|---|---|---|---|
| Fortnite | 430 FPS | 330 FPS | 205 FPS |
| Counter-Strike 2 | 745 FPS | 545 FPS | 335 FPS |
| Cyberpunk 2077 | 230 FPS | 175 FPS | 110 FPS |
| Valorant | 900 FPS | 755 FPS | 465 FPS |
| COD: Warzone | 280 FPS | 280 FPS | 180 FPS |
| Battlefield 6 | 230 FPS | 215 FPS | 135 FPS |
| PUBG: Battlegrounds | 400 FPS | 315 FPS | 195 FPS |
| Rainbow Six Siege | 575 FPS | 440 FPS | 270 FPS |
| Marvel Rivals | 190 FPS | 140 FPS | 85 FPS |
| GTA V | 185 FPS | 140 FPS | 85 FPS |
| Red Dead Redemption 2 | 225 FPS | 205 FPS | 125 FPS |
| Escape from Tarkov | 140 FPS | 140 FPS | 100 FPS |
| Rust | 180 FPS | 165 FPS | 100 FPS |
| Minecraft | 570 FPS | 570 FPS | 570 FPS |
Bottleneck by resolution
Which component limits performance at each resolution
Power supply
Estimated load: 784 W · Recommended: 950 W
Put together a compatible build or compare component prices across retailers.
Other graphics cards with AMD Ryzen 7 9800X3D
Other processors with GeForce RTX 4090
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