https://wccftech.com/intel-first-to-16-cores-for-laptops-with-upcoming-core-i9-12900hx-mobility-cpu/

Intel has silently been working on a new top-of-the-line mobility lineup that features the flagship Core i9-12900HX CPU with 16 cores. This chip has now been leaked and benchmarked within the Geekbench database along with its first benchmarks.

The new Intel Core i9-12900HX CPU will provide 16-cores (in an 8+8 configuration) making this chip the first for Intel to offer such a high core count on the laptop segment. The laptop in question is the upcoming Lenovo 82TD and should be an absolute beast in terms of rendering and gaming performance. And yes, while 16 core laptops have existed from AMD, those were based on desktop parts and not mobile chips.