> Optane

Optane really died before LLMs went big. I was at an enterprise using a TON of them, often for SAP HANA workloads.

> AMD have... turned out some decent gaming graphics cards and fine server CPUs but little else.

I'm on a AMD desktop, using an AMD gpu, next to a gaming console using an AMD CPU and GPU, making large DC purchasing decisions where intel hasn't even shown up as a factor.