EQAA is not external and is classified as 16xQ in game when in engine it is using AMD's EQAA, as for other notes yes i accidentally replaced NVIDIA notes, apologies.
Topic on User talk:Markie
I didn't know that, thank you, and it's fine. The AA options should be listed and described as presented in-game, so if it uses EQAA instead of CSAA with an AMD GPU just add that without the "8f16x", and perhaps add "(Nvidia)" and "(AMD)" after each AA type so it's clear it might change. Now that you mention it I remember some games from that era did differ in AA offering depending on your GPU vendor, Counter-Strike: Source was one of them, probably some other Valve/Source games too.