Using the Asetek Gen 4 pump and a radiator measuring 393mm x 120mm x 27mm the Thermaltake Water 3.0 Ultimate is a large cooler designed for serious overclockers.  The fans are rated at 99CFM and are set up properly with PWM connections to balance noise and performance.  Overclockers Club increased their i7-4770K to 4.2GHz and this cooler kept the CPU at an impressive 67 °C, topping the charts of the coolers they have tested previously.  They managed to get the chip running at 4.5GHz on 1.241 volts which raised the temperature to 75 °C but that was the highest frequency that particular i7-4770K could reach.  Check out their full review here.

"Cooling capacity is dependent on air flow and the Ultimate has you covered. You have close to 300CFM of air at your command, so expect to notice the fans when you crank up the heat and with a cooler this size, a little fan noise just goes with the territory. Thermaltake has refined a few components to make the installation about as easy as it can be. The low profile Asetek pump looks good and is quiet. Even at a 4.5GHz overclock, the Ultimate still has some thermal room if your chip can handle a higher overclock."

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