Looking at some benchmarks online and the 7900x always beat the 5950x even though the 5950x has more cores. But in this article the 7900x performed worse than

Looking at some benchmarks online and the 7900x always beat the 5950x even though the 5950x has more cores. But in this article the 7900x performed worse than the 5950x, is it because of the core count, or are there some other factors?