Radeon RX 6800 XT vs Arc B580
Radeon RX 6800 XT or Arc B580? Estimated FPS in popular games at 1080p, 1440p and 4K, the specs side by side, and what each costs in pounds with VAT included.
Radeon RX 6800 XT vs Arc B580Expect around 63% more FPS in games from Radeon RX 6800 XT.Fortnite 1440p: 190 vs 115 FPS.
Frame rates side by side
Average frame rate on “High” with AMD Ryzen 7 9800X3D at QHD - 1440p.
| Radeon RX 6800 XT | Arc B580 | |
|---|---|---|
| Fortnite | 190 FPS | 115 FPS |
| Counter-Strike 2 | 315 FPS | 195 FPS |
| Cyberpunk 2077 | 100 FPS | 65 FPS |
| Valorant | 435 FPS | 270 FPS |
| COD: Warzone | 165 FPS | 105 FPS |
| Battlefield 6 | 125 FPS | 75 FPS |
| PUBG: Battlegrounds | 180 FPS | 110 FPS |
| Rainbow Six Siege | 255 FPS | 155 FPS |
| Marvel Rivals | 80 FPS | 50 FPS |
| GTA V | 80 FPS | 50 FPS |
| Red Dead Redemption 2 | 120 FPS | 70 FPS |
| Escape from Tarkov | 95 FPS | 60 FPS |
| Rust | 95 FPS | 60 FPS |
| Minecraft | 570 FPS | 420 FPS |
The specs
| Model | Radeon RX 6800 XT | Arc B580 |
|---|---|---|
| Our gaming performance score | 52 | 32 |
| TDP | 300 W | 190 W |
| VRAM | 16 GB | 12 GB |
| PSU we recommend | 750 W | 600 W |
What they cost in the UK
Prices checked:
Thinking of an upgrade?
Go to the PC builderPlan a compatible build and price it in pounds, VAT included, across the shops we track for the UK.
More head-to-heads
Frame rates in popular pairings
A guide only: how far apart they land depends on your game, settings and drivers. Our model is tuned against benchmarks published by TechPowerUp, Tom’s Hardware and Hardware Unboxed. CPU and GPU calibration: July 2026 · Newest games added: September 2026. How we calculate FPS