>>10069
Since now I got much more experience I noticed that there is a way to reduce requirements significantly. and even laptop may be adequate.
32bit systems are quite rare now, as this is extremely old stuff.

the problem is that new 3d models are gigantic and especially hair is most problematic in rendering because it has huge amount of polygons with transparency and reflections. si that eventually hair will take more time to render than everyting else combined

so your solution would be to use older 3d models with less polygons and simple skin which renders easily on any pc.
the end result is similar to OpenGL output but slightly better
however in that case you can forget about any photorealism

I started doing that myself just because if you render anime style images they look great with older models and even better than with modern ones in fraction of the time required to render current stuff.

you should be bothered by rendering speed because doing photorealistic picture of decent quality will take all day and computer will be unusable during that time.