QH73 stepping

[ApostolCV]

Skylake has retired, but it's never too late to figure out his stepping.
I have chip QH73 ES. At this site it marked like P0.
But this silicon has CPUID - 506E0h so A0.
Besides CPU-Z also says it's A0. But Aida and HWinfo reports like P0.
Chat gpt explains this by the fact that the loaded Windows microcodes mask the real stepping.
May someone add light to this story.

[xsecret]

In hardware development, just like in software, there are branches. Skylake includes many of them.

The initial stepping of the architecture is labeled X0. It then becomes A0 for the first branch of the first product line, and something else (such as Q0 or P0) for the first branch of a different product line. This avoids overlap in naming between branches.

[wren4777]

I believe the stepping was commonly referred to as A0 but is actually called P0 in some accidentally published testing documents:

https://www.aicipc.com/image/images/support/Apollo_AVL_0925Y17.pdf

[xsecret]

QH73 / 8066202070831 is listed by Intel as P0 Stepping (ES1)

[ApostolCV]

Quiet interests..
I had read a theme about Skylake ES , and found photo for QH8H , where HWinfo reports it's P0 and PRE-ES1