> Absolutely none of these forms of naming have any way to correlate between them.

I've found that -- as of a ~decade ago, at least, ark.intel.com had a really good way to cross-reference among codenames / SKUs / part numbers / feature set/specs. I've never seen errata there but they might be. Also, I haven't used it in a long time so it could've gotten worse.

Intel do have a website where you can look up SKUs. If you wait long enough and exploit certain bugs in the JS you can get it to give you a bunch of CSV files.

Now the only issue you have is that there is no consistent schema between those files so it's not really any use.