6700k my mannn...
There was a video done where they actually did their benchmarks using a 7700k I believe to see if indeed people with an older CPU would be bottle necked.
I remember the results looking pretty good to me though, I'll try and find the video if I can just can't recall who it was
1080P = bottlenecked with 6700k
1440P = small bottleneck
4k = tiny bottleneck
That said, 3080's are not 1080P cards, heck, they're overkill for 1440P unless you have a 240hz monitor. These are aimed at 4k.