Ryzen 7 5700X + RX 7900 GRE: bottleneck check
CPU-limited at 1440p. Mild CPU bottleneck.
The Ryzen 7 5700X cannot feed the RX 7900 GRE fast enough at 1440p, so the card sits partly idle in CPU-heavy games.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | CPU | 18% | mild CPU bottleneck |
| 1440p | CPU | 11% | mild CPU bottleneck |
| 4K | GPU | 12% | balanced |
This is the classic pattern: at 1080p the Ryzen 7 5700X is the limit (18%), while at 4K the RX 7900 GRE takes over (12% 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 | 4.6 GHz |
| Socket | AM4 |
| Power used for the PSU estimate | 65 W not confirmed against a manufacturer page |
| Released | 2022 |
| Gaming index | 62 / 100 |
| Multi-core index | 58 / 100 |
| VRAM | 16 GB |
|---|---|
| Board power | 260 W |
| Released | 2024 |
| 1080p index | 54.5 / 100 |
| 1440p index | 49 / 100 |
| 4K index | 44.0 / 100 |
Power supply
The RX 7900 GRE measured 265 W average while gaming (354 W highest 20 ms spike, TechPowerUp). With the Ryzen 7 5700X at a power figure of 65 W and about 75 W for the rest of the system, the sustained load is about 405 W. A 650 W unit is the safe choice. Details on the RX 7900 GRE PSU page or try other pairs in the PSU calculator.
Upgrade paths
CPUs that remove the bottleneck
AM4Best CPU for the RX 7900 GRE Best GPU for the Ryzen 7 5700X RX 7900 GRE 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.