Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Graphics and Visual Effects › Video rendering and graphics cards › From what I have learned,
From what I have learned, the rendering process relies pretty much solely on your CPU and some of the RAM. This is why it’s important to get a mutli-core high Ghz processor if you are going to be doing a lot of video editing.
Everything else while you are actually editing, watching,and/or previewing the video relies on both the graphics card and CPU. If you are using adobe CS5 with the Mercury Playback Engine a lot more of the stress is put onto your graphics card (if it is within the reccomendations of Adobe) while previewing the video.