be quiet! is back again after a less than impressive showing with the Dark Rock 4 CPU cooler. This time be quiet! is bringing out the big guns with the Dark Rock Pro 4. Bringing with it seven 6mm copper heatpipes, and a pair of 135mm Silent Wings 3 fans in a massive dual tower layout, how will it fair compared to it's little brother?

Today's review takes place on our purpose built cooler testing system, featuring an AMD Ryzen R7 1700 overclocked to 3.9GHz, a GIGABYTE Aorus AX370-Gaming 5 motherboard, 16GB of Corsair DDR4 memory, and an ASUS GeForce GTX 670 DirectCU II TOP GPU. Full details of the test system and testing methodology can be found here.