it doesn't bottleneck it but you could probably get another 5% out of it by getting a 4600X and that is being conservative.
In my mind that would be a bottleneck.
What CPU / GPU combo do you run?
I haven't made my mind up yet, the one thing i am assuming is that Ampre is going to be expensive, i'm not happy with AMD's driver situation right now and i'm looking to upgrade in a couple of months, around the £350 mark, so 2070/2070S The hope is that much closer to Ampre they will be a little cheaper, or maybe by some metrical AMD will have sorted their drivers out and i can get a 5700XT.