Ryzen 5 5600X + GTX 1660 Super: bottleneck check
Balanced at 1440p.
Well matched at 1440p. The GTX 1660 Super is the slightly busier part, by about 20%.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | GPU | 11% | balanced |
| 1440p | GPU | 20% | balanced |
| 4K | GPU | 39% | GPU-bound (normal) |
The GTX 1660 Super is the limiting part at every resolution, which is the healthy direction, and the gap is small enough that neither part is wasted. Upgrade the GPU first when you want more frames.
Specifications
| Cores / threads | 6 / 12 |
|---|---|
| Max boost | 4.6 GHz |
| Socket | AM4 |
| TDP | 65 W manufacturer-published TDP — sustained turbo can be higher · AMD |
| Released | 2020 |
| Gaming index | 61 / 100 |
| Multi-core index | 49 / 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 5600X 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
AM4Cards that use the Ryzen 5 5600X fully
Best CPU for the GTX 1660 Super Best GPU for the Ryzen 5 5600X 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.