I've discovered that games built on frostbite engine stutter after some time. All of these game are running on DirectX 11, all of them are fairly new. These games are Battlefield 1, Battlefield V and Need for Speed: Heat. All of them as far as I know run on the same iteration of the engine. The stuttering seems to appear at random intervals, usually lasts for about 5-20 seconds, and appears only after about 20 minutes of gaming, after that it disappears and after a random interval (10, 20 minutes) appears again and so on and so on... I have no idea what's causing this, but I suspect it's a driver issue. Anyway I would like to hear some feedback or perhaps advices how to fix this issue.
CPU: Ryzen 5 2600X
RAM: 16 GB DDR4 3000 MHz
GPU: Sapphire RX Vega 64
PSU: Corsair RM 750X (2018)
Temperatures on both GPU and CPU are absolutelly fine (CPU is 60-65° C during gaming, GPU is 70° C)