ffmpeg1
Intel Core i7-3610QM testing with a System76 Lemur Ultra and Intel HD 4000 on Ubuntu 13.10 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1403295-PL-FFMPEG15918.
FFmpeg
H.264 HD To NTSC DV
Phoronix Test Suite v10.8.4