Performance - Video Transcoding - 1024M Prime

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 and quad-channel clocked memory is not always that much faster overall. The differences are small. I am throwing in a 4770K/6700K just for scaling reason btw.

Above Quad channel 3200 MHz CL14

Above dual channel 3000 MHz CL16 (today's tested memory) - It's just short of a second slower overall. 

So going from Quad channel 3200 MHz on the memory towards 3000 dual-channel made 1 second difference on calculating a 1024M of Prime.
 

At 2133 MHz the memory is faster (latency) as within its SPD Jedec profiles it will configure itself at 2133 MHz (x2) yet can manage a CL 16-15-15-36 setting at a command rate of 1.