It depends on speed at which you're using the encoder. At faster speeds, you'll lose some compression performance. Libvpx is still ahead compared to x264 at hig

It depends on speed at which you're using the encoder. At faster speeds, you'll lose some compression performance. Libvpx is still ahead compared to x264 at higher speeds, but not by as much as at their top quality (slowest speed) settings. I discussed that earlier in https://blogs.gnome.org/rbultje/2015/09/28/vp9-encodingdecoding-performance-vs-hevch-264/ https://blogs.gnome.org/rbultje/2015/09/28/vp9-encodingdecod... (scroll down to "encoding speed").