I have a 12600KF and I used a 4080 at 4k 1% of the time I was bottlenecked, now I got the same I5 with a 4090 and I get slight bottlenecks in some games at 4k but upgrading to a 13900K anyways

6700k->12600KF->13900K

$300 motherboard, $375 CPU, $50 ram nice find

13600K is faster in games, and even multi threaded in a lot of cases, the 13th gen was a big step up, best hope you get a z790, many bios updates still don’t let you support a 13-14th gen especially on b660 regardless to manufacture said even with firmware, tried this on 3 4 b660 boards