Well, i do understand which one is better or worse, but..i would like a more technical answer. For example...why 16 pipelines is better than 12 and why 20mhz in core clock speed would make a such a difference....etc.
Here are the links of the cards im most interested in:
20mhz woiuldn't really make that much of a diff. 16pipelines is better than 12 because it processese 4 more pixels per clock cycle..or something like that dono exact details.
Also, the x800xl is basically a x850xl with lower clock settings. A x850pro is a x850xt with a quad of pipelines disabled.