Mac ultras would be great if they offered pcie slots to put nvme drives on and ideally an infiniband network card.

They've got thunderbolt 5 which is pretty good and every port has a dedicated controller. You can even network macs together just over thunderbolt.

Not as fast as raw PCIe slots inside the chassis, but I don't think the ghost of steve jobs cares much. He'd tell you that if you've got no taste at all you can put his beautiful machine into ugly junk like from sonnettech and you can go do ugly things elsewhere.

I think apple's happy taking the market they've got and they'll leave the big guns HPC market to nvidia. The margins look great for nvidia right now, but I suspect nvidia's path will be similar to dram's boom/bust cycle more than apple's continuous "premium tool" brand's market positioning.

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