Huh, I guess that was as bad an idea as the 640K one.

How much per 8K x 10 bit color, video frame?

Roughly 190GB per minute without sound.

Trying to do special effects on more than a few seconds of 8K video would overwhelm a 64GB system, I suspect.

You were (unintentionally) trolled. My first post up there was alluding to the legend that Bill Gates once said, speaking of the original IBM PC, "640K of memory should be enough for anybody." (N.B. He didn't[0])

[0] https://www.wired.com/1997/01/did-gates-really-say-640k-is-e...

Video and VFX generally don't need to keep whole sequences in RAM persistently these days because:

1. The high-end SSDs in all Macs can keep up with that data rate (3GB/sec) 2. Real-time video work is virtually always performed on compressed (even losslessly compressed) streams, so the data rate to stream is less than that.