4 Replies Latest reply on Sep 25, 2013 12:04 PM by A Ajar

    What Exactly are the Benefits of More GPU RAM for PP, AE, PS ?

    A Ajar

      What benefit is there to having, say 4gb GPU RAM over 2gb ?

       

      I have read numerous conflicting, and perhaps misguided, claims regarding when/why one would rather have a graphics card with more than 2gb RAM.

      Does this impact effects render, multiple monitor resolution, CUDA, Mercury Playback Engine performance, other areas, etc. and how?

       

      Thanks for your response.

      A Ajar

        • 1. Re: What Exactly are the Benefits of More GPU RAM for PP, AE, PS ?
          ECBowen Most Valuable Participant

          2GB of video ram is more than enough for the Hardware MPE engine and 1080 media with effects. Essentially the greater the ram space on the video card the greater ram caching available for the Cuda acceleration to buffer data ready for GPU processing. The Application memory management ie caching profiles though effect this based on each codec and resolution ie data per frame. However along with this you have to have enough system ram to create the buffers used to cache the data down to the GPU ram since that data shadows down for GPU processing and then back again for final encoding. This means that not configuring enough system ram will limit the amount of GPU ram used. Hence why you want atleast 16GB of ram for HD and the hardware MPE engine. 3GB+ ram spaces on video cards are for 2K to 4K + frame sizes ie R3D and Raw/CinemaDng. This is because the data per frame multiplies significantly when at 4K resolution. This require far greater ram space which is why you look for the 3GB+ ram space cards for those workflows. The Effect data will also increase because there is far mroe resolution data to alter. This is on top of the drawing out data which is what you see on the screen. That is when the differences for the cards show.

           

          Eric

          ADK

          • 2. Re: What Exactly are the Benefits of More GPU RAM for PP, AE, PS ?
            A Ajar Level 1

            Thanks for the repsonse and info, Eric.

             

            What about using hi-res or multi-layered PSD's in Premiere?

            Is that a case where the extra graphics ram might be of additional use?

            • 3. Re: What Exactly are the Benefits of More GPU RAM for PP, AE, PS ?
              ECBowen Most Valuable Participant

              Yes the GPU ram would also help with scaling Photoshop images greater than the sequence resolution with different aspect ratio's.


              Eric

              ADK