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 |
| Power used for the PSU estimate | 65 W not confirmed against a manufacturer page |
| 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
The Arc B580 measured 185 W average while gaming (237 W highest 20 ms spike, TechPowerUp). With the Ryzen 7 3700X at a power figure of 65 W and about 75 W for the rest of the system, the sustained load is about 325 W. A 650 W unit is the safe choice. Details on the Arc B580 PSU page or try other pairs in the PSU calculator.
Upgrade paths
CPUs that remove the bottleneck
AM4Best CPU for the Arc B580 Best GPU for the Ryzen 7 3700X Arc B580 PSU requirements
Same CPU, other cards
AllSame card, other CPUs
AllIndexes are relative estimates aggregated from published reviews; real results vary by game, settings, memory speed and drivers. Methodology.