Interesting, I didn't know that video encoding could be parallelized per-frame in that way. That's really cool; I stand corrected.
Still, I think it's clear that an x264 with N threads per frame with no per-pixel SIMD would lose to the current x264 with N threads per frame. The key is that x264 is making good use of task parallelism and data parallelism.
Still, I think it's clear that an x264 with N threads per frame with no per-pixel SIMD would lose to the current x264 with N threads per frame. The key is that x264 is making good use of task parallelism and data parallelism.