とりあえず、消してアルミフィン押しではないっすw
単に好奇心でいろいろ妄想してるだけ
玄人さんにはアホくさいと思うかもしれないけどね

Aqua Computerにメールで問い合わせてみた

Re: about airplex GIGANT
Hello ___________,

the copper variant has a slightly better cooling performance.
If we just go by the price performance ratio is not woth the additional money.
It is more for the type of customer that wants the best no matter what it costs ;-)

I can not provide any specific numbers for the temperature difference but is
is small and maybe something about 2°C.

The radiators are the same and the only difference is the material used for the fins.
The water runs through copper pipes in both variants, so the water never has
contact to the aluminium.

kind regards
Sv__ Han____