Performance - Video Transcoding

Multi-threaded Video Transcoding

x.264 is a free library for encoding H.264/MPEG-4 AVC video streams. Encoding/transcoding to that format is one of the most intensive tasks a processor can perform and needs to access system memory to do so. We encode a h.264 Dolby Digital 1080P trailer of 150 MB to Matroska x.264 with 5.1 channels AC3. This software is a perfect benchmark for CPU and memory testing as it is very sensitive to multiple cores and memory frequency. The displayed number is the number of frames rendered per second averaged out over the encoding process. The higher the number, the faster the performance is.

So here's a good school example of the fact that faster clocked memory on the frequency is not always faster overall. The differences are incredibly small. But the 2133 Mhz kit from corsair remains on top in performance thanks to its extremely fast timings, creating very low latency.

If you analyze the timings a bit, then sure .. the clock frequency of the memory might be fantastic, the CL12-14-14-36 with a command rate op 3T simply create a lot of latency.