Feature Articles

CUDA for Professionals - NVIDIA's Newest Quadro GPUs

CUDA for Professionals - NVIDIA's Newest Quadro GPUs



Results - Adobe Premiere Pro CS4 Encoding

Results - Adobe Premiere Pro CS4 Encoding

To test the encoding time for Adobe Premiere Pro CS4, we set up a 1 minute video clip and changed the Export Media settings to H.264 Blu-ray with 29.97 fps, VBR (variable bitrate) and 2-pass encoding. Then we let the application do its job and checked how long it took eventually. On paper, it didn't matter what GPU we were using, since the default Blu-ray encoding on CS4 relied mostly on the CPU. Hence, the slight variations in the results here for almost all the cards.

The sole exception is none other than the Quadro CX, which was able to use the RapiHD from Elemental Technologies to tap into the 192 CUDA stream processors on the CX to do the encoding. This lead to a more than 50% speed up in our test, with the CX clearly taking less time to finish. Quality settings were similar for both the RapiHD plug-in and the default Blu-ray encoder in Adobe.

This is precisely why NVIDIA is pushing its CUDA technology - the improvements can be huge. In this case, a roughly 50% improvement which could potentially save many hours for larger encoding projects when you extrapolate the above results. For all the promise that NVIDIA was talking about its new Quadro cards in conjunction with CUDA and Adobe, it's this feat that is the most impressive (and unique) so far.

We also changed our dual-core CPU to a quad-core CPU (Intel Core 2 Extreme QX6850 @3.0GHz) just to check that our original dual-core CPU is not a significant factor and as expected, this change didn't affect the results of the Quadro CX/RapiHD encoding.