Much as I want diversity; a 3090 would be a billion times better for games and can probably hold its own for a broader AI workload. Anything other then running highly quantised models that don't fit in 24GB with realativly small contexts.

A 3090 is what I have now.

But I hope to somehow have 48Gb or 64GB VRAM in a GPU that's also gaming-ready.

I was looking for maybe getting a mac studio for this reason, but I don't think a mac is really good for for gaming.