Ryzen 9 9900X + GTX 1660 Super: bottleneck check
GPU-limited at 1440p. CPU overkill.
The GTX 1660 Super is the part working hardest at 1440p, which is what you want. The Ryzen 9 9900X keeps about 42% in reserve.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | GPU | 35% | GPU-bound (normal) |
| 1440p | GPU | 42% | CPU overkill |
| 4K | GPU | 55% | CPU overkill |
The GTX 1660 Super is the limit at every resolution and by a wide margin at 4K (55%). The Ryzen 9 9900X 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 | 120 W |
| Released | 2024 |
| Gaming index | 84 / 100 |
| Multi-core index | 90 / 100 |
| VRAM | 6 GB |
|---|---|
| Board power | 125 W |
| Released | 2019 |
| 1080p index | 19.9 / 100 |
| 1440p index | 15 / 100 |
| 4K index | 11.3 / 100 |
Power supply
CPU 120 W + GPU 125 W + about 100 W for motherboard, memory, storage and fans gives an estimated peak load of 345 W. We recommend a 450 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 + GTX 1660 Super (gaming index 64)
- Ryzen 7 8700G + GTX 1660 Super (gaming index 68)
- Ryzen 5 7600 + GTX 1660 Super (gaming index 75)
GPUs that use the Ryzen 9 9900X more fully
- Ryzen 9 9900X + RTX 5080 (1440p index 72)
- Ryzen 9 9900X + RX 7900 XTX (1440p index 66)
- Ryzen 9 9900X + RTX 4080 Super (1440p index 64)
Best CPU for the GTX 1660 Super Best GPU for the Ryzen 9 9900X GTX 1660 Super 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.