SimplySepe
So I have a custom hard tubing loop. But it got me thinking, since GPU and CPU have different maximum temperature thresholds would it be most ideal to have them on separate loops?
I think so, but there is certainly a point of diminishing returns, if you have a huge amount of radiator surface, or really fast flow rate, the water can certainly be considered homogenous and the difference would be negligible, but unless you set up your flow very specifically you could be sending water with less thermal capacity (warm water) through the latter item in the loop. I.E. A radiator before each component block vents heat to ensure it can pick up as much heat from each block. As long as the one with the higher temperature is getting enough cooling with the added heat from the other components to have thermal overhead, you aren't getting anywhere near exotic cooling levels where too much cooling can cause issues.