Core i7-11700K + RX 7800 XT: bottleneck check
Balanced at 1440p.
Well matched at 1440p. The Core i7-11700K is the slightly busier part, by about 8%.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | CPU | 16% | mild CPU bottleneck |
| 1440p | CPU | 8% | balanced |
| 4K | GPU | 15% | balanced |
This is the classic pattern: at 1080p the Core i7-11700K is the limit (16%), while at 4K the RX 7800 XT takes over (15% 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 | 5.0 GHz |
| Socket | LGA1200 |
| Max turbo power | 125 W |
| Released | 2021 |
| Gaming index | 62 / 100 |
| Multi-core index | 54 / 100 |
| VRAM | 16 GB |
|---|---|
| Board power | 263 W |
| Released | 2023 |
| 1080p index | 51.7 / 100 |
| 1440p index | 46 / 100 |
| 4K index | 40.9 / 100 |
Power supply
CPU 125 W + GPU 263 W + about 100 W for motherboard, memory, storage and fans gives an estimated peak load of 488 W. We recommend a 650 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.
Best CPU for the RX 7800 XT Best GPU for the Core i7-11700K RX 7800 XT 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.