I have the Macbook M5 MAX with 128 GB of RAM. I put its performance at roughly equivalent to the RTX 5070 Ti. The M3 Ultra 512 GB for me is about half the performance of the RTX 5070 Ti but obviously it has the ability to do more because of the increased memory.

I don't think anything compares to the nVidia chips at all.

I am also considering to buy 3-4x RTX 6000 Pro 96GB plus some Ryzen workstation with a grant.

Is this the best general-purpose choice as of 2026 with $50k for training, fine-tuning and running large open models?

You would install a 240v circuit (in the US) like for an electric clothes dryer.

Edit: I now see the author was in an apartment and couldn't do this, so I concede this is not responsive here.