I was trying to build a ML training machine myself these days. I don't really need the RTX FP64 and its 4K graphic rendering with gaming stuff, all I need is ML

I was trying to build a ML training machine myself these days. I don't really need the RTX FP64 and its 4K graphic rendering with gaming stuff, all I need is ML training(FP16 mostly with lots of CUDA cores). There is no such thing, you either use multiple RTX GPU cards and 'bend' them for ML training, or you buy A100 40GB at about 125K or A100 80GB at about 250K, which is far beyond my budget. Google's TPU could be used to assist ML training, but then it does not have the CUDA ecosystem for software, plus, it kept its new TPU for inhouse use only as far as I can tell. AWS ML EC2 are very expensive to me which is why I want to build one for mid-sized ML trainings.