The GPU memory limitation is why I went with an RTX 3060 (12gb).

The Poser manual implies that we can use multiple GPUs for rendering.  I have a support ticket in on this, and I am hoping that one day I will hear back from them on this.

If we can use 2 (or more) - I'll get more 3060s - they are starting to slide under $400, and I have my eye on an X570 MB that can support 3 GPUs.