7600K - 1481 ST 13600K - 2654 ST 13700K - 2820 ST 13900K - 2955 ST

So to answer the question something like an 80% improvement over 2016, roughly 2x if you compare it to a 2016 i5. And the 13900K does have the highest single thread performance in the 13th-gen models from what I can tell.

browser.geekbench.com/…/intel-core-i5-7600k browser.geekbench.com/…/intel-core-i5-13600k browser.geekbench.com/…/intel-core-i7-13700k browser.geekbench.com/…/intel-core-i9-13900k