512-bit computing

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]

Uses

The AMD Radeon R9 290X (Sapphire OEM version pictured here) uses a 512 bit memory bus
gollark: Can you be more specific?
gollark: Well, I know it has privacy problems, and its app is horribly bloated.
gollark: I typecheck my programs by running them and seeing if they break.
gollark: Hmm, it appears it actually *does* do that except for short (<60s) timers.
gollark: I don't think it's *efficient* to run a timer for every reminder, but it's more precise than my polling approach.

References

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