The newest Intel 11th-gen i9-11900K actually reduces core count from 10 (on the i9-10900K) to 8, although leaked performance numbers point to the new chip matching last-gen's multi-threaded performance due to a huge single-threaded performance bump.

It's worth pointing out that their new chips aren't out yet ("Q1") and Intel has completely given up on matching AMD's 12C or 16C parts.