> For your gaming PC you likely don't even need a current gen chip.
Many gamers, like me, probably also use their display for things aside from gaming. For non-gaming computer work I like 4K w/ a high (120hz ideally) refresh rate for well rendered text and smoother movement. But as I also then want to use this monitor for gaming, I need a gaming system that supports this.
TLDR; you might need a current gen chip for reasons other than gaming.