Slight aside, modern computing needs are not necessarily about the processor...

I've just edited a video that took 110 GB of data, near gave my laptop a hernia processing it.
The video was 4K but the output was only 1080p. I had to keep deleting stuff it took up so much room!

..and that was just for a YouTube video of me walking up a hill!

At that sort of resolution, it's all going to come down to disc speed, not CPU speed. I wouldn't like to think what it'd be like editing 4K or -shudder- 8K!