"Some"How much a Ryzen 3600 will bottleneck an RTX Titan?
Playing Crysis series and Tomb Raider series at 4K and 8K."Some"
Just like with any computer. Be it a 15 year old Pentium 4, a new 'tablet', or a Cray supercomputer...there is always a "bottleneck" of some kind.
'bottleneck' doing what?
Playing what game? Doing what CAD work?
You were looking for a specific number?
That does not, and cannot, exist.
And with the Ryzen 3600, it is not released yet. Any "number" you see is pure speculation.