Euclideon's demos managed to run even on laptops, think solely on the cpu, iirc. A high core Ryzen alone should help quite a bit. If it can be adapted to use gpu compute it should be able to run even at ridiculous framerate, resolution, and detail levels, if it was truly using a laptop cpu only, from nearly a decade ago.
7 years ago quote
Companies like Euclideon and Atomontage seem to have dealt with many of the issues regards volumetric rendering. Euclideon claimed they could access vast data even from an HDD, solving the memory issues, as the models would run straight from the HDD. SSDs could potentially aid it too.
The thing is people want destructible, physically interactive environments with high levels of detail, and real world physics. The atomontage stuff appears to be able to capture real life footage, potentially with improvements it could handle real world clothing animation, long hair and fur.
It remains to be seen if volumetric is better able to handle large amounts of moving objects, physics and destructibility.
At least from an artist's perspective, it would seem that rather than having to sculpt a model and downscale it, bake details, to run on lower detail for ingame use, the raw sculpts could be directly imported yet run at 4k in high framerate(extrapolating from the statement of unoptimized laptop cpu from nearly a decade ago running it in software from HDD, in HD.).