Results: AMD Ryzen 7 7800X3D + GeForce RTX 3090
AMD Ryzen 7 7800X3D and GeForce RTX 3090 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 7800X3D: from £269.23 at GamingKit, 3 listings up to £373.20. Lowest in the last 30 days: £255.41.
- GeForce RTX 3090: from £2,774.42 at GamingKit.
The pair together: from £3,043.65.
What a frame costs in the UK
The pair price at UK shops divided by the frames it gives at 1440p on high settings. Lower is better value.
| Game | FPS at 1440p | Cost per frame |
|---|---|---|
| Fortnite | 205 FPS | £14.85 |
| Counter-Strike 2 | 340 FPS | £8.95 |
| Cyberpunk 2077 | 110 FPS | £27.67 |
| Valorant | 470 FPS | £6.48 |
| COD: Warzone | 180 FPS | £16.91 |
| Battlefield 6 | 135 FPS | £22.55 |
| PUBG: Battlegrounds | 195 FPS | £15.61 |
| Rainbow Six Siege | 275 FPS | £11.07 |
| Marvel Rivals | 85 FPS | £35.81 |
| GTA V | 85 FPS | £35.81 |
| Red Dead Redemption 2 | 125 FPS | £24.35 |
| Escape from Tarkov | 100 FPS | £30.44 |
| Rust | 100 FPS | £30.44 |
| Minecraft | 505 FPS | £6.03 |
The same frame rate for less, in UK stock now
- GeForce RTX 5070 from £522.69: 1% more frames with this processor.
- Radeon RX 9070 from £563.72: 5% more frames with this processor.
- Radeon RX 9070 XT from £860.92: 15% more frames with this processor.
What it costs to run in the UK
At full load the pair draws about 470 W. At 26.32p per kWh (Ofgem energy price cap, October to December 2026) that is £0.12 an hour of play, or about £90 a year at 2 hours a day.
Expected FPS
Average FPS on “High” settings
| 1080p FPS | 1440p FPS | 4K FPS | |
|---|---|---|---|
| Fortnite | 280 FPS | 205 FPS | 125 FPS |
| Counter-Strike 2 | 465 FPS | 340 FPS | 210 FPS |
| Cyberpunk 2077 | 150 FPS | 110 FPS | 70 FPS |
| Valorant | 645 FPS | 470 FPS | 290 FPS |
| COD: Warzone | 245 FPS | 180 FPS | 110 FPS |
| Battlefield 6 | 185 FPS | 135 FPS | 85 FPS |
| PUBG: Battlegrounds | 270 FPS | 195 FPS | 120 FPS |
| Rainbow Six Siege | 375 FPS | 275 FPS | 170 FPS |
| Marvel Rivals | 120 FPS | 85 FPS | 55 FPS |
| GTA V | 120 FPS | 85 FPS | 55 FPS |
| Red Dead Redemption 2 | 175 FPS | 125 FPS | 80 FPS |
| Escape from Tarkov | 125 FPS | 100 FPS | 65 FPS |
| Rust | 140 FPS | 100 FPS | 65 FPS |
| Minecraft | 505 FPS | 505 FPS | 455 FPS |
Bottleneck by resolution
Which component limits performance at each resolution
Power supply
Estimated load: 664 W · Recommended: 800 W
Put together a compatible build or compare component prices across retailers.
Other graphics cards with AMD Ryzen 7 7800X3D
Other processors with GeForce RTX 3090
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