8700k and 1070. In games, GPU usage is anything up to 99% (at which point FPS hits a brick wall) and CPU hovers around 20% and never goes over 30. RAM at 2133, 2666, or 3000 makes no difference. GPU overclocking helps some, but gains are small and this card artifacts at anything over +70 core and +120 memory. I've been wanting a Vega56 or 64 so I can take advantage of FreeSync, but I wonder if I would run into the same issue. Would a Vega64 alleviate some of the bottleneck, or is it worth waiting for the next generation of cards?