I can't find which benchmarks those scores are from. It looks like sometimes they might have been comparing gaming FPS to AMDs paired with Nvidia 5090's? Something feels off about the site you linked - the methodology and scores aren't even cursorily explained, and gaming scores don't make sense. The 5600X doesn't even have an iGPU and the GFX card they had to have paired with it isn't listed.

What does "single core gaming performance" even mean for a CPU that doesn't have an iGPU? How could that not be a category error to compare against Apple Silicon?

I was looking at https://www.cpubenchmark.net/single-thread/

See also:

https://nanoreview.net/en/cpu-list/cinebench-scores

https://browser.geekbench.com/mac-benchmarks vs https://browser.geekbench.com/processor-benchmarks