Some of the advantages of full coverage blocks are their ability to cool all critical card components rather than just the GPU core. Full coverage blocks also run silent, wtih no fan noise to worry about (though the radiator does admittedly have fans as part of the overall loop). There's also the reason of bragging rights; having what is arguably the fastest graphics card on the planet on water is unquestionably an enviable achievement. With that said, the question then becomes: which GPU water block? In order to answer that critical question, today we've got a GPU water block roundup for the GTX 590 to examine products from some of the top manufacturers to try to determine just that.