https://wccftech.com/amd-big-little-processor-cores-show-up-in-latest-patent-coming-to-next-gen-ryzen-cpus-apus/

A new AMD patent has been discovered which talks about the hybrid architecture consisting of Big and Little cores that are expected to be featured on next-gen Ryzen CPUs and APUs. There've been rumors that AMD is going to transition to a hybrid architecture with its next-gen chips, something that we will be getting with Intel later this year, and the 'Task Transition' patent more or less seems to confirm this.

The Big and Little architecture which is a hybrid approach in which a CPU combines different core IPs for faster compute has been seen on ARM chips for a while now. More recently, Intel brought the technology to life on the x86 platform with its Lakefield SOC which combined Atom and Cove cores together. This hybrid approach is the next step forward for the x86 platform but we haven't seen a wide-scale use of it so far, nor is current software ready to properly utilize the full potential of such architectures.