AMD Ryzen 9 5900H

AMD's high-end Cezanne offering for gaming laptops, the 5900H runs eight Zen 3 cores and sixteen threads at a 45W TDP with a 4.6GHz boost clock — a modest clock bump over the 5800H aimed at buyers wanting the fastest Zen 3 mobile chip available.

In practice the difference between the 5900H and 5800H is small; both share the same core architecture and thread count, with the 9-series badge mostly reflecting binning and a slightly higher clock ceiling.