Bottleneck
Bottleneck
Might relate to the minimal lows, as noted before, determining what percentage of usage is shared between your GPU and CPU during games that stutter.
It seems you might not need an upgrade after all. Tackling that issue should be the easiest first step. If stability improves, you’ll likely find more playable options and can determine whether an upgrade is necessary. From what I can see, the 11400f shouldn’t be a major bottleneck. What are your system specifications?