Ryzen 9 7900X + RX 6750 XT: bottleneck check
GPU-limited at 1440p. GPU-bound (normal).
The RX 6750 XT is the part working hardest at 1440p, which is what you want. The Ryzen 9 7900X keeps about 26% in reserve.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | GPU | 19% | balanced |
| 1440p | GPU | 26% | GPU-bound (normal) |
| 4K | GPU | 43% | CPU overkill |
The RX 6750 XT is the limit at every resolution and by a wide margin at 4K (43%). The Ryzen 9 7900X is overkill for this card: a faster GPU would give you far more frames than any CPU change.
Specifications
| Cores / threads | 12 / 24 |
|---|---|
| Max boost | 5.6 GHz |
| Socket | AM5 |
| Max turbo power | 170 W |
| Released | 2022 |
| Gaming index | 81 / 100 |
| Multi-core index | 86 / 100 |
| VRAM | 12 GB |
|---|---|
| Board power | 250 W |
| Released | 2022 |
| 1080p index | 39.0 / 100 |
| 1440p index | 33 / 100 |
| 4K index | 27.9 / 100 |
Power supply
CPU 170 W + GPU 250 W + about 100 W for motherboard, memory, storage and fans gives an estimated peak load of 520 W. We recommend a 750 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 (AM5)
- Ryzen 5 8600G + RX 6750 XT (gaming index 64)
- Ryzen 7 8700G + RX 6750 XT (gaming index 68)
- Ryzen 5 7600 + RX 6750 XT (gaming index 75)
GPUs that use the Ryzen 9 7900X more fully
- Ryzen 9 7900X + RX 7900 XTX (1440p index 66)
- Ryzen 9 7900X + RTX 5080 (1440p index 72)
- Ryzen 9 7900X + RTX 4080 Super (1440p index 64)
Best CPU for the RX 6750 XT Best GPU for the Ryzen 9 7900X RX 6750 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.