Originally Posted by
oohms
If the metal is liquid, it does not matter that much how well it conducts. Even if it were to conduct as well as copper, thats still pretty slow. (Have you ever held a copper bar on one end and heated the other?)
Having a higher heat capacity is better, because then it takes a lot more heat energy to heat up the water per degree, which is what you want in a waterblock.
The only reason i can think of for using liquid metal is to use a magnetic pump, so they don't have to rely on moving parts