I was able to find good, playable settings for each of the four tested GPUs, but three of them all seemed to hang around the same FPS range. This suggests my CPU is holding them back, along with my observation that performance improves significantly when inside buildings. The GTX 1070 and GTX 1080 are almost certainly being bottlenecked by my CPU, and it is possible the GTX 980 is as well, but I do not want to commit to that idea. Also, options that I would normally expect to reduce a CPU bottleneck, such as reducing Level of Detail, did not seem to make a difference. While I will not take this as proof it is not bottlenecking me, it may suggest the nature of the bottleneck is something I cannot so easily remedy. That wraps up this analysis, but I do intend to return to it in the future, when DirectX 12 support is added. This could actually go a fair distance in addressing what CPU issues I seem to be having, so I for one am looking forward to this particular patch.