AutoMKV x264 Encoding

Website: Doom9

We tested x264 compression using AutoMKV version 0.97.1 and x264 to to compress a 1.1GB DVD VOB file into 350MB MP4 file using a two-pass encode and we used a 112kbps LAME encoder to compress the audio. The whole process is dependent on both single and multi-core performance and the entire encoding time was recorded.

There's quite a shift to using MKV or MP4 wrappers for x264 content now, especially for movie content and those in the large anime fansubbing community. x264 doesn't have the same SSE enhancements as DivX 6.8, but the benefits of extra cache and better memory performance should still show notable improvements.


x.264 encoding is a slightly different story though, as the AMD 7750 and 7550 CPUs are both faster than the older AMD CPUs and the Intel E5200 as well. In a clock to clock comparison, the AMD 7550 is a significant 40 seconds faster, and compared to the older 4850e also at 2.5GHz it's over four minutes quicker. The only CPU ahead of them is the Phenom tri-core because the software makes use of multi-core encoding which means despite its clock speed deficit the extra core ekes out a six to 15 percent performance advantage.

Handbrake H.264 Encoding

Website: HandBrake

Our test uses Handbrake - an open-source, GPL-licensed, multiplatform, multithreaded video transcoder, available for MacOS X, Linux and Windows - to encode a high resolution MPEG-2 video using the H.264 codec. This primarily tests multi-threaded CPU and memory subsystem performance.


Unlike above, using a different x.264 encoding program the Intel E5200 CPU outperforms the rest of the field nicely and is 14 seconds faster than the Athlon X2 7750. Clock to clock against the Athlon X2 7550, the Intel E5200 is 8.5 percent faster and even the older Athlon X2 6000+ with its faster 3.1GHz core clock performs better than the Kumas here.