I just ran it up on 48gb (2x 3090) + overflow into CPU RAM and it runs at around 4tk/s (only a little 8k context size though) which while absolutely not something I'd personally use daily - it is actually usable.
EDIT: It seems that original authors provided a nice write-up:
https://unsloth.ai/blog/deepseekr1-dynamic#:~:text=%F0%9F%96...