Am I ever going to need to build a new PC again? I'm half joking-- but only half.

I was doing some overclocking and 4k/"ultra" benchmarking last night. My three-and-a-half year old Haswell 4670k CPU-- at its stock 3.4 GHz-- was internally running the Gears of War 4 engine benchmark at 174 fps. My 6.6 teraflop GTX 1070 could only render the happenings at 45 fps.

I'm reading that Kaby Lake is 11% faster than Skylake, which was-- let's say for example-- 11% faster than Haswell, and so on. For a gamer, what in the world is the point when modern games are so comically GPU bound?

Of course a new chipset brings other advantages, such as higher memory bandwidth and the like. But all the same, unless a new generation of games comes out that are massive hadron collider-like physics simulators, or the next wave of GPUs are several times the power of the current ones... when will I actually need a full-on platform upgrade?