Comparing 3800x and 5900x
Comparing 3800x and 5900x
For pure gaming, increasing performance isn't worth it. You'll notice only small improvements in speed compared to the 3800x you mentioned.
It depends on whether this productivity factor matters to you, since most games can't run well on 12 cores. The titles you mentioned won't perform well on your CPU, especially not on its 8-core setup.
You're considering selling it mainly for gaming purposes. That makes sense given your focus on performance over productivity.
What is Zen 3? It should offer a speed boost of 10 to 20 percent compared to Zen 2, especially under single-threaded tasks. I switched from a 3800X to a 5800X and saw the improvement in games right away.