The Ryzen equivalent to i5-12600K is the Ryzen 9 5900X.
The Ryzen equivalent to i5-12600K is the Ryzen 9 5900X.
You'd essentially need a Ryzen 5600x for a straightforward comparison. They compete closely, though they exchange points.
Support this idea as well, though it surpasses the Intel chip in several aspects such as base clock and cache capacity. Choosing between a 5600X and a 5800X would leave you behind compared to a 12,600K processor.
For CPU performance, the 5800X or 5700X leads in overall power, while the 12600K offers superior single-core speed, making it generally more effective in games (especially at 1080p).