Core i7-6700K + GeForce RTX 4090 Bottleneck Calculator
Whether the Core i7-6700K and the GeForce RTX 4090 hold each other back, at every resolution, with the frame rate you can expect and the single upgrade that fixes it.
- The platform itself is a limit here: an older socket usually means PCIe 3.0 and slower memory, which costs a few percent on top of the figure above.
The same pair at every resolution
A processor pushes roughly the same number of frames whatever the resolution. A graphics card pushes far fewer as pixels go up. That is why the limit moves as you climb this table, and why a bottleneck figure quoted without a resolution means nothing.
| Resolution | Estimated fps | Limited by | Gap |
|---|---|---|---|
| 720p (1280 x 720) | 100 fps | CPU | 60.5% |
| 1080p (1920 x 1080) | 99 fps | CPU | 46% |
| 1440p (2560 x 1440) | 98 fps | CPU | 26.7% |
| Ultrawide 1440p (3440 x 1440) | 97 fps | CPU | 10.8% |
| 4K (3840 x 2160) | 76 fps | Balanced | 0% |
| 8K (7680 x 4320) | 34 fps | GPU | 31.8% |
What to do about it
No CPU on the market fully feeds the GeForce RTX 4090 at 1080p (1920 x 1080), because at this resolution the card is simply faster than any processor can keep up with. The Ryzen 7 9850X3D closes most of the gap; the rest of it disappears on its own the moment you move to a higher resolution or preset.
See what the Ryzen 7 9850X3D pairs withModelled from published benchmark data, not measured on this exact combination. The indexes behind these figures and the sources they come from are on how we calculate this.