As someone who works on low-level CPU performance code, everyone I work with "knows" that Bulldozer was a performance dud for most use cases.

This article about Zen starts with an overview of why Bulldozer failed to deliver: https://arstechnica.com/gadgets/2017/03/amds-moment-of-zen-f...

How about the fact that it performed about as good as the previous generation at multi-threaded workloads but worse at single-threadwd workloads?

Or that while it was power efficient at idle, it was exceptionally power hungry under load?

Maybe it was when the CEO admitted it failed to meet expectations, said we'd have to wait 4 years for a successor, and then stepped down?

Idk... I'm probably way off base.