AMD announces 7nm Ryzen 4000 processors for laptops

AMD announced the Ryzen 4000 generation of mobile processors based on Zen 2 at CES 2020. The generation consists of powerful chips in the H-series and more economical variants in the U-series. They are the first x86 processors for laptops produced at 7nm.

In the Ryzen 4000 H series appear two processors with tdp of 45W: the 4800H and the 4600H. The Ryzen 4800H gets eight cores and sixteen threads with a clock speed of 2.9GHz and boost to 4.2GHz. The 4600H is a hexacore with 3GHz clock speed with boost to 4GHz. There will also be a Ryzen 7 4800HS with eight cores, sixteen threads and 35W TDP. AMD will supply this exclusively to Asus for six months.

The U-series consists of five chips with 15W TDP. Only the 4800U and 4600U have support for SMT, or simultaneous multithreading. The most powerful is the 4800U with eight cores and sixteen threads at 1.8GHz, with boost to 4.2GHz.

The processors have support for lpddr4x and according to AMD are twice as efficient per watt as the mobile Ryzen 3000 predecessors. Lenovo, among others, announces laptops with the Ryzen 4000 processors. The chips support technology AMD calls SmartShift. This allows laptops to switch between the integrated GPU of the processors and additional video cards in the laptop.

AMD Ryzen 4000

Cores / Threads Clock sn. Max Boost Clocksn. Compute units Stream processors

AMD Ryzen 4000 H Series (45W)

AMD Ryzen 4000 U Series (15W)