FWIW I got a 12700KF at $302 on Amazon Prime day, had planned on getting either 13600K or 13700K but the deal was too much to pass up and I really did not think Raptor would be this much better.
Now, given how good Raptor Lake is, some regrets only assuaged by the fact that I got a good sample that OC'd very well.
It's really hard to find tests with different CPUs on GPUs more mainstream like the 3060 Ti. But I found some.
It... can be pretty significant even with a 3060Ti, despite some of the general groupthink that it isn't. Not in all titles, but quite a few.
That's not the subject of this video below, but you can see his tests with the 3060 Ti FE.
13600K vs 12600K got +10% on Horizon Zero Dawn at 1440P High, +12% on CyberPunk2077 at 4K high - with 3060 Ti.
With a 4090, it's sometimes +20%.
Reality though - Chances are you won't see it much until you upgrade the GPU unless you play these CPU-heavy games, but if you bought from Best Buy or something like that the return is easy and I'd do it.
View: https://www.youtube.com/watch?v=VMWjqdd-e9s&t=688s