the question is which one is better? copper or aluminum ???? i know some people are trying to pretend smart by start saying something like copper is better at conducting heat and aluminum is good at dissipating heat so they are paired up and bla bla bla and most forum i've seen are also like that....which is not answering the question at all!!! just want to know if fully copper and aluminum, which will be better given the same size and geometry in two circumstances? 1) passive cooling 2) active cooling? thanks a lot. And for those who still insist on telling placing the copper core at the base and aluminum fins on the top (so-called expert opinions) can make the best heatsink, thanks but no thanks your opinions are not helping at all.

p/s: i may sound rude because the previous thread i opeded a lot of people keep repeating the same stuff which is not answering the question. sorry again if i offended anyone.

if people would only read properly before posting, the answer that i wanted is very simple which is better as a heatsink for the two circumstances that i've mentioned...that's it!!! not repeating what i've already mentioned.

if what i wrote above is still not clear, let me put it this way, if i'm to place heatsink on my gc rams and mosfet probably with passive cooling only, which is better?