Core i5-13600K + RTX 3070: bottleneck check
GPU-limited at 1440p. GPU-bound (normal).
The RTX 3070 is the part working hardest at 1440p, which is what you want. The Core i5-13600K keeps about 23% in reserve.
By resolution
| Resolution | Limiting part | Severity | Verdict |
|---|---|---|---|
| 1080p | GPU | 16% | balanced |
| 1440p | GPU | 23% | GPU-bound (normal) |
| 4K | GPU | 40% | GPU-bound (normal) |
The RTX 3070 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 | 14 / 20 |
|---|---|
| Max boost | 5.1 GHz |
| Socket | LGA1700 |
| Max turbo power | 181 W |
| Released | 2022 |
| Gaming index | 78 / 100 |
| Multi-core index | 74 / 100 |
| VRAM | 8 GB |
|---|---|
| Board power | 220 W |
| Released | 2020 |
| 1080p index | 39.0 / 100 |
| 1440p index | 33 / 100 |
| 4K index | 27.9 / 100 |
Power supply
CPU 181 W + GPU 220 W + about 100 W for motherboard, memory, storage and fans gives an estimated peak load of 501 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 (LGA1700)
- Core i3-13100F + RTX 3070 (gaming index 60)
- Core i5-12400F + RTX 3070 (gaming index 66)
- Core i5-13400F + RTX 3070 (gaming index 70)
GPUs that use the Core i5-13600K more fully
- Core i5-13600K + RTX 4080 Super (1440p index 64)
- Core i5-13600K + RTX 5070 Ti (1440p index 62)
- Core i5-13600K + RTX 4080 (1440p index 62)
Best CPU for the RTX 3070 Best GPU for the Core i5-13600K RTX 3070 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.