AVX

AVX (Advanced Vector Extensions) is a set of instruction set extensions for x86 processors that was introduced by Intel in 2011 with the Sandy Bridge microarchitecture. AVX builds upon the earlier SSE instruction set extensions and is designed to improve the performance of applications that make use of SIMD (Single Instruction, Multiple Data) operations.

AVX provides support for wider SIMD registers, allowing processors to perform more operations on a single data stream in parallel. AVX also introduces support for floating-point fused multiply-add (FMA) operations, which can improve the performance of certain types of numerical computations.

Like SSE, AVX has been updated several times since its introduction, with new versions such as AVX2 and AVX-512 introducing new instructions and improved performance for certain types of operations.

AVX is widely used in a variety of applications that require high-performance numerical computations, such as scientific simulations, financial modeling, and video encoding. Software developers can optimize their applications to take advantage of the AVX instruction set to improve performance on computers with compatible processors.