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0 pointsbstar7711y ago0 comments

My hypothesis for the performance disparity is that h264 encoding is hardware accelerated and webm is not.

0 comments

x264 does not use GPU hardware, so they're both using just the CPU. WebM fails to use more threads or 256bit or 128bit registers correctly.

1ris11y ago

recent versions of x264 do use GPU hardware via OpenCL, but the performance gain is questionable.

j / k navigate · click thread line to collapse

0 pointsbstar7711y ago0 comments

My hypothesis for the performance disparity is that h264 encoding is hardware accelerated and webm is not.

x264 does not use GPU hardware, so they're both using just the CPU. WebM fails to use more threads or 256bit or 128bit registers correctly.

1ris11y ago

recent versions of x264 do use GPU hardware via OpenCL, but the performance gain is questionable.

j / k navigate · click thread line to collapse