Quote Originally Posted by Boulard83 View Post
The temp difference in the loop is minimal. If you have decent flow and Radiator youll notice only a 1-2°c from the IN to the OUT of the radiator.
if not less

Also if you do run in parallel your flow rate to each card is ~1/2 what you would get if you went serial. Higher flow = better heat transfer so if you 1/2 the flow you get higher temps on each card