Laptop Zen and desktop Zen are basically the same in single core. The big difference is you're not more than 8 fast cores. The M1 Max also has basically 8 fast

Laptop Zen and desktop Zen are basically the same in single core. The big difference is you're not more than 8 fast cores. The M1 Max also has basically 8 fast cores. It used to be different, but now frequency is so close to the absolute limits that adding more power doesn't help single core performance that much.