With video editing/rendering, it's the number of cores/hyperthreading that makes the difference. That's why the 8-core 8350 is better. The 4790k would work (it has hyperthreading), but it's significantly more expensive.
I've used both my home rig and my work rig for rendering/CAD and hyperthreading/cores makes a huge difference. My home system actually runs SolidWorks better, but my work system (4-core xeon) renders much faster as it's one of the few aspects of Solidworks that can take advantage of multiple cores/threads.
Converting time-lapse videos was also much faster.