Definition: AVX

(1) (AntiVirus Expert) See Bitdefender.

(2) (Advanced Vector Extensions) A set of instructions that work on multiple sets of data. AVX was introduced on Intel and AMD processors in 2011. Also called "Sandy Bridge New Extensions," AVX added 16 registers totalling 256 bits for simultaneous operation as follows:

  AVX FLOATING POINT OPERATIONS

  Quantity    Size     Type of Numbers

     8       32-bit    single precision
     4       64-bit    double precision

AVX2 and AVX-512
In 2013, two enhancements were made. AVX2, also known as "Haswell New Instructions," incorporated integer math, and AVX-512 doubled the size of the registers from 256 bits to 512. See SIMD.