512-bit computing

  (Redirected from 512-bit)

In computer architecture, 512-bit integers, memory addresses, or other data units are those that are 512 bits wide. Also, 512-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size.

There are currently no mainstream general-purpose processors built to operate on 512-bit integers or addresses, though a number of processors do operate on 512-bit data. As of 2013, the Intel Xeon Phi has a vector processing unit with 512-bit vector registers, each one holding sixteen 32-bit elements or eight 64-bit elements, and a single instruction can operate on all these values in parallel. However, the Xeon Phi's vector processing unit does not operate on individual numbers that are 512 bits in length.[1]


The AMD Radeon R9 290X (Sapphire OEM version pictured here) uses a 512 bit memory bus


  1. ^ "Intel Xeon Phi Coprocessor System Software Developers Guide" (PDF). Intel. March 2014. Retrieved April 30, 2019.
  2. ^ "GTX 280 | Specifications". GeForce. Retrieved 2013-08-13.
  3. ^ "GTX 285 | Specifications". GeForce. Retrieved 2013-08-13.
  4. ^ "NVIDIA® Quadro® FX 5800 provides professionals with visual supercomputing from their desktops delivering results that push visualization beyond traditional 3D". Nvidia.com. Retrieved 2013-08-13.