Those of you running a Core i5 or Core i7 processor have little to worry about -- even the old Sandy Bridge 2500K kept up with newer models, not to mention the Core i3-6100 that managed to match the Ivy Bridge Core i5-3470 and beat the FX-9590 by a slim margin.
The only processors to really suffer were Intel's dual cores without Hyper Threading and AMD's Athlon X4 860.
Not a lot to say here, CPU utilization wasn't even at 50% on the 6700K when clocked at 2.5GHz. Overclocking your Intel processor for better frame rates in Deus Ex: Mankind Divided is pointless.
The FX-series does respond to overclocking and although the gains aren't huge, a few extra frames will come in handy with this game.