[shituonui]

In what universe did Zen 1 fail? Zen 1 was one of the best-performing designs in the world and scaled very well to high core counts.

The fact that Zen 2 is better doesn't reduce the excellence of Zen 1.

[ksec]

>In what universe did Zen 1 fail?

Failed in the context of NUMA, not the product or uArch. Which is still an issue with Zen 2. Only better managed.

[shituonui]

They made a tradeoff of having higher and less uniform memory access. This was not a failure. It was a decision that paid off.