I replied
here as well as 8-ball.
Thanks Graystar... I was mainly talking about performance vs. flow rate/pressure.
I was pretty sure that some of those pumps added heat.
My radiator has three thermister controlled fans that move air through it (nearly silent) and they won't go full RPM unless the air temp reaches 110° F. This has moved a LOT of air across it. And it's surface area is probably about 8 times that of my water blocks put together.
And... as to the water taking more heat away as the flow increases... I'd agree. But, as you say, the incerased flow rate also lowers the tempreture of the water coming out compared to a lower flow rate. This DOES indeed increase the requirements of the radiator to remove the heat that is in the water, but it also does not allow the same radiator time to get the same amount of heat from the water. Ergo: your mentioning the need for a higher performing radiator.
Thanks for the replies... this makes me more confident that I do indeed have a fairly balanced setup and will continue to run it as is, other than maybe getting a little more "efficient" and organized case layout.