That's inconsistent messaging from Corsair, then. Parent comment quotes the times they're like "ehh, they're same thing, don't worry about it" and then they go on to say "well TECHNICALLY there's a teeensy difference in conductor sizes"???
Either they are confident that the 0.25mm terminal difference is within tolerance enough that they consider 12VHPWR to be functionally equivalent to 12V-2x6, or they're getting themselves confused let alone the target audience of their article.
Either they are confident that the 0.25mm terminal difference is within tolerance enough that they consider 12VHPWR to be functionally equivalent to 12V-2x6, or they're getting themselves confused let alone the target audience of their article.