[brookst]

Whoa, who’s calling for nvidia’s head? Not me.

My point was that the PC architecture of separate system and GPU memory is hitting a wall that means inefficiency and higher prices.

I have little doubt that Nvidia’s attempted acquisition of ARM was in part because nvidia recognized this. I expect they are exploring other UMA approaches. But it will be hard in the fragmented, not-vertically-integrated model.

Apple’s advantage here is one platform that can scale: it is hard to imagine Grace and similar running Windows on developer’s desktops. Maybe!

But my point was that, shockingly, Apple has a chance here. A small chance, as I said, but I don’t think anyone (including Apple) saw just how soon UMA was going to become a competitive advantage.

[smoldesu]

Nvidia doesn't need to acquire ARM to sell systems with unified memory. The Tegra boards are all mixed-address-space systems, and CUDA lets you manipulate memory over PCI. They see the writing on the wall, which is why they've been building systems for the past decade that reflect this philosophy.

If you think it's hard to imagine Nvidia hardware running on a developer desktop, wait until you hear about what happened when Macs tried entering the server market.