HPC nowadays seems using AMD EPYC exclusively.

Are there actual volume and production issues at TSMC?

I figured intel is still "relevant" because of past momentum, not because of actual specs or production capacity.

So while AMD is relevant. Intel is only "relevant" with quotations.

I think Intel are still relevant on the basis of having broadly competitive specs (not quite as far at as others, but pretty close), and their own production capacity.

There is enough demand for both TSMC and Intels capacity.

In terms of performance for value they aren't relevant. If you have cash and you want the best bang for your buck intel is not a rational option. That's just reality but some people are in denial.

In terms of potential for future success and raw ranking, yeah intel is still relevant in this area. But given that most people on HN are consumers I would think "relevant" applies to my first statement. They aren't currently a rational choice when you are making a purchase decision. But I guess I'm wrong. People will buy a shittier product just out of patriotism I guess? Nothing wrong with that.

AWS is pushing their ARM (Graviton) chips over the Intel ones. The price/performance is just better, generally speaking.