To Anton's credit he did write "one of the most admired" and conveniently didn't include the number of different mobo makers we're supposed to admire. "One of" could as well be "least of many" then LOL. I'm here quite regularly and I frankly don't remember any such survey Anton refers to. Perhaps it wouldn't go amiss including a link to survey results?
And I think you're on the spot with the speed gains, that's only really relevant to APUs (bandwidth) and a lot less so to CPUs in general, especially given AMD's lengthy pipeline in their latest (and a few previous) offerings. Llano/Trinity CPU parts are choking on bandwidth as it is and integrated GPUs are quite irrelevant in systems running on Fatal1ty and similar "performance" mobos. Dunno what you mean with "unified RAM access" though? You're referring to upcoming DDR4's point-to-point (channel agnostic) topology? Cheers!