Following Advanced Vector Extensions (AVX) and more recently Advanced Matrix Extensions (AMX) for furthering the x8664 CPU compute potential, Intel has now published initial details on APX: Advanced Performance Extensions.

Intel's Advanced Performance Extensions are to allow access to more registers and adding additional features to enhance general-purpose CPU performance. Intel says APX will allow for performance gains across a wide swath of workloads and without costing much in terms of CPU power or silicon area.