Since I absolutely loved the movie Battle of the Titans, both the original and the remake, and we at Bjorn3D.com happens to have the three most top end water blocks on the market. We felt the title was fitting.Most of us all know who the top three water block manufacturers are. Just recently, these top three water block manufacturers released new improved water blocks to their line up. We at Bjorn3D.com are going to pit all three of these top three water blocks against eachother. In a true Bjorn3D.com fashion, we are going to stick to a rather tight and strict temperature limitation of 60°C (+/- a couple of degrees) on our proven and ever cranking Intel Core i7 930 CPU. We are also going to mount these CPU coolers onto  two different motherboards, one of these is the reliable Gigabyte X58A-UD3R (review can be found HERE), and then we're going to strap these CPU coolers onto our Asus Rampage II Extreme (review can be found HERE) to check out the clearances on both of these motherboards. We are all aware of some incompatibilities on certain motherboards when it comes to these higher end water blocks.These water blocks are in the cost range of 90 USD a pop. We at Bjorn3D.com are going to grade these blocks on what comes with them, as far as mounting, and if they come with a retention plate. We are are also going to add something a bit different we have not done before. We are going to measure flow rate of these blocks, by pumping a gallon of water through these blocks.