Best video card to use, and can the CPU also be used more to expedite processing?

[TPX (Thomas D.)]

@dpcole72-12989

Would adding a 6950XT card and using both it and the 6700XT in Crossfire configuration improve rendering time?

No, 6700XT would slow down the process.

Switching to 3090, 4080, 4090 would increase the speed by a lot.

just look at the benchmark forum.