Ryzen 7 7800X3D + Arc A750: bottleneck check
GPU-limited at 1440p. CPU overkill.
The Arc A750 is the part working hardest at 1440p, which is what you want. The Ryzen 7 7800X3D keeps about 42% in reserve.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | GPU | 36% | GPU-bound (normal) |
| 1440p | GPU | 42% | CPU overkill |
| 4K | GPU | 55% | CPU overkill |
The Arc A750 is the limit at every resolution and by a wide margin at 4K (55%). The Ryzen 7 7800X3D is overkill for this card: a faster GPU would give you far more frames than any CPU change.
Specifications
| Cores / threads | 8 / 16 |
|---|---|
| Max boost | 5.0 GHz |
| Socket | AM5 |
| Max turbo power | 120 W |
| Released | 2023 |
| Gaming index | 92 / 100 |
| Multi-core index | 70 / 100 |
| VRAM | 8 GB |
|---|---|
| Board power | 225 W |
| Released | 2022 |
| 1080p index | 28.7 / 100 |
| 1440p index | 23 / 100 |
| 4K index | 18.4 / 100 |
Power supply
CPU 120 W + GPU 225 W + about 100 W for motherboard, memory, storage and fans gives an estimated peak load of 445 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.
Upgrade paths
CPUs that remove the bottleneck
AM5Cards that use the Ryzen 7 7800X3D fully
Best CPU for the Arc A750 Best GPU for the Ryzen 7 7800X3D Arc A750 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.