Ryzen 7 3700X + Arc B580: bottleneck check
Balanced at 1440p.
Well matched at 1440p. The Ryzen 7 3700X is the slightly busier part, by about 9%.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | CPU | 17% | mild CPU bottleneck |
| 1440p | CPU | 9% | balanced |
| 4K | GPU | 14% | balanced |
This is the classic pattern: at 1080p the Ryzen 7 3700X is the limit (17%), while at 4K the Arc B580 takes over (14% GPU-limited). If you play at 1080p on a high-refresh monitor, a faster CPU is the upgrade that matters; at 1440p or 4K this pair is already well matched.
Specifications
| Cores / threads | 8 / 16 |
|---|---|
| Max boost | 4.4 GHz |
| Socket | AM4 |
| Max turbo power | 65 W |
| Released | 2019 |
| Gaming index | 52 / 100 |
| Multi-core index | 50 / 100 |
| VRAM | 12 GB |
|---|---|
| Board power | 190 W |
| Released | 2024 |
| 1080p index | 34.9 / 100 |
| 1440p index | 29 / 100 |
| 4K index | 24.1 / 100 |
Power supply
CPU 65 W + GPU 190 W + about 100 W for motherboard, memory, storage and fans gives an estimated peak load of 355 W. We recommend a 550 W unit (80 Plus Gold or better) so transient spikes from the graphics card stay inside the PSU's comfort zone. Try other pairs in the PSU calculator.
Upgrade paths
CPUs that remove the bottleneck (AM4)
- Ryzen 5 5600 + Arc B580 (gaming index 60)
- Ryzen 5 5600X + Arc B580 (gaming index 61)
- Ryzen 7 5700X + Arc B580 (gaming index 62)
Best CPU for the Arc B580 Best GPU for the Ryzen 7 3700X Arc B580 PSU requirements
Compare nearby pairs
Same CPU, other GPUs
Indexes are relative estimates aggregated from published reviews; real results vary by game, settings, memory speed and drivers. Methodology.