AVX-512 lines up with 64-byte cache lines, it seems like it would be a huge chan... | Hacker News

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		cma on Aug 14, 2021 \| parent \| context \| favorite \| on: AVX512/VBMI2: A Programmer’s Perspective AVX-512 lines up with 64-byte cache lines, it seems like it would be a huge change to go bigger.

dragontamer on Aug 14, 2021 [–]

NVidia GPUs are 32 wide warps, AMD CDNA are 64 wide. That's 1024 bit and 2048 bit respectively.

Cache lines are probably 64 wide for the purpose of burst length 8 (64 bit burst length 8 is 64 bytes / 512 bits).

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