Ryzen 5 8600G + GTX 1660 Super: bottleneck check
GPU-limited at 1440p. GPU-bound (normal).
The GTX 1660 Super is the part working hardest at 1440p, which is what you want. The Ryzen 5 8600G keeps about 23% in reserve.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | GPU | 15% | balanced |
| 1440p | GPU | 23% | GPU-bound (normal) |
| 4K | GPU | 41% | CPU overkill |
The GTX 1660 Super is the limit at every resolution and by a wide margin at 4K (41%). The Ryzen 5 8600G is overkill for this card: a faster GPU would give you far more frames than any CPU change.
Specifications
| Cores / threads | 6 / 12 |
|---|---|
| Max boost | 5.0 GHz |
| Socket | AM5 |
| TDP | 65 W manufacturer-published TDP — sustained turbo can be higher · AMD |
| Released | 2024 |
| Gaming index | 64 / 100 |
| Multi-core index | 54 / 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
The GTX 1660 Super measured 127 W average while gaming (140 W highest 20 ms spike, TechPowerUp). With the Ryzen 5 8600G at its TDP of 65 W and about 75 W for the rest of the system, the sustained load is about 267 W. A 450 W unit is the safe choice. Details on the GTX 1660 Super PSU page or try other pairs in the PSU calculator.
Upgrade paths
CPUs that remove the bottleneck
AM5Cards that use the Ryzen 5 8600G fully
Best CPU for the GTX 1660 Super Best GPU for the Ryzen 5 8600G GTX 1660 Super PSU requirements
Same card, other CPUs
AllIndexes are relative estimates aggregated from published reviews; real results vary by game, settings, memory speed and drivers. Methodology.