> AFAIK AVX processing units are oversubscribed, there are less of them than CPU cores. Typically I see about 2 SIMD instruction throughput per cycle per core

> AFAIK AVX processing units are oversubscribed, there are less of them than CPU cores. Typically I see about 2 SIMD instruction throughput per cycle per core on Intel CPUs. SIMD execution units are not shared between cores in any way. Clock throttling might happen, but SIMD is usually still a pretty huge net win.