Let me show you something, with great care i designed this on the priceable that an i5 with a GTX 970 is a perfectly balanced system, to squeeze the absolute most out of that. Now, the same CPU with a GTX 980 the CPU would bottleneck the GPU, you would need an i7 to make use of the upto 16 threads i have running in it A-Synchronously.
If 4c 8t CPU become to this level of GPU's i would have more Drawcalls to work with, even a (How many years old 2600K?) would do it.
The facts are, unfortunately, that GPU performance continues to grow way beyond CPU to GPU pricing balance capability.
what that means is i and i would think actual game developers are hemperd by this status quo.