Intel & AMD Work On APX, the Next Major Step in the Evolution of x86 Architectures, Adds More Performance Without Requiring More Die Area & Power

Intel and AMD are co-developing APX, a new x86 extension that expands the instruction set for better performance and efficiency.

APX adds more general-purpose registers, new instruction forms, and conditional operations to reduce loads and stores.

The design aims to preserve compatibility with existing x86 software while improving future CPU throughput and power use.

If adopted broadly, APX could help keep x86 competitive for AI, data, and general-purpose workloads.