Is the video card responsible for work in photo and video editors?

Question

Video cards

Good afternoon
When we launch the program for video editing prime pro or photoshop.
Do we have a processor or a video card responsible for speed?
Those. when working with 4k video, do you need to upgrade the video card or the processor itself?

And after the update, the rendering process itself will speed up, or will only the brakes go away when working in the installation?

Answer 1

https://helpx.adobe.com/photoshop/kb/photoshop-cc-...