Based on the Geekbench 5 scores, it looks like the Ryzen 7700X and 13700K are gonna be pretty close in single core performance, comparing the integer and floating point workload scores:
7700X: https://browser.geekbench.com/v5/cpu/17122041
13700K: https://browser.geekbench.com/v5/cpu/17106570
7600X ST scores looking competitive too:
https://browser.geekbench.com/v5/cpu/16966070
Worst case, the 7700X will match the 13700 (non K) in single core performance. According to the official specs, the power draw on the 7700X should be significantly lower than the 13700K.
i9s are generally ahead of Zen 4 though, at least in Geekbench 5.
7700X: https://browser.geekbench.com/v5/cpu/17122041
13700K: https://browser.geekbench.com/v5/cpu/17106570
7600X ST scores looking competitive too:
https://browser.geekbench.com/v5/cpu/16966070
Worst case, the 7700X will match the 13700 (non K) in single core performance. According to the official specs, the power draw on the 7700X should be significantly lower than the 13700K.
i9s are generally ahead of Zen 4 though, at least in Geekbench 5.