The AMD Ryzen 9 9950X wins in 10 out of 14 comparable specs, with 1 tie. Its biggest advantage is L2 Cache (1500% better).
Core i5-6600K wins in 3 specs (MSRP: 63% better).
Recommendation
Choose Ryzen 9 9950X if you want the best overall performance — especially l2 cache.
Choose Core i5-6600K if msrp matters more to you.
