https://wccftech.com/surface-laptop-4-use-ryzen-4000-15w-tdp-cpus/

Just like the Surface Laptop 3, Microsoft will reportedly launch the Surface Laptop 4 line in the 13.5-inch and 15-inch display sizes, along with some welcome internal upgrades. Unfortunately, the innards are not going to comprise of AMD’s newest Ryzen 5000 CPUs for ultrabooks, but the older Ryzen 4000 chips instead. Of course, there are going to be Intel-fueled models too, so let us check them out in more detail right here.

According to WinFuture, the Surface Laptop 4 will feature two Ryzen 4000 CPUs, depending on what configuration you want. Those details are given below.