One thing that has been commented on was the processing speed with DX12. I have tracked the AI benchmarks since the first patch. For the most part, I have seen average late game turn times on my machine hover around 21-23 seconds on average. (ultra settings, GE1070) On the test I ran yesterday with R&F, average late game turn times are now in the 15 second range -- a 25% improvement. Well done Firaxis! Have others seen sizeable improvement, esp. in the late game?