Would an i5 4690 bottleneck gtx 1070/1060?

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No. A 4690 is still one of the highest end CPUs, and you should not expect it to bottleneck even a GTX 1080 below 4K
At 4K, the i7 shows some gains, indicating a slight bottleneck in some tasks.

For a 1060 or 1070, I'd expect 1080p or 1440p, so there would be no bottleneck.
No. A 4690 is still one of the highest end CPUs, and you should not expect it to bottleneck even a GTX 1080 below 4K
At 4K, the i7 shows some gains, indicating a slight bottleneck in some tasks.

For a 1060 or 1070, I'd expect 1080p or 1440p, so there would be no bottleneck.
 
Solution