Zen 4 AVX512 implementation is not double-pumped and tech journos need to stop calling it that, because it has specific meaning that does not match what takes p

Zen 4 AVX512 implementation is not double-pumped and tech journos need to stop calling it that, because it has specific meaning that does not match what takes place. It simply decodes operations on ZMM registers into multiple uOPS and schedules them to free 256b units. In addition, Zen 4 has special handling of 512b full-width shuffles, with dedicated hardware to avoid doing very expensive emulation. As a result, Zen 4 with its 4 256b SIMD units still acts like a very strong 2x512b core. There is nothing cheap about this implementation and it is probably the best rendition for consumer hardware so far.