Twin Frozr IV Advanced: Efficiency and Noise Level
The MSI GeForce GTX 760 HAWK is equipped with MSI’s exclusive Twin Frozr IV Advanced cooler.
The large aluminum heatsink is pierced by five heat pipes, four of which are 6 mm in diameter. The fifth pipe is 8 mm. Everything is nickel-plated.
The cooler can be easily taken apart:
The heatsink features the so-called SuperPipes, actually. MSI claims they have twice the heat transfer speed compared to ordinary heat pipes. The cooler’s base is made of copper and nickel-plated, too.
The aluminum fins and the heat pipes are soldered to each other:
The cooler has two 100mm fans with Propeller Blade technology which ensures higher pressure at a lower level of noise. The fans also support Dust Removal technology (they rotate backwards for 30 seconds when shutting down to blow away the accumulated dust).
The fans are Power Logic’s PLD10010B12HH model.
Their rotation speed is PWM-regulated in a range of 900 to 2850 RPM. There are two blue LEDs on each impeller for soft highlighting.
To check out the card’s temperature we used five runs of the Aliens vs. Predator (2010) benchmark at the highest visual quality settings, at a resolution of 2560x1440 pixels, and with 16x anisotropic filtering and withno 4x MSAA. We used MSI Afterburner 3.0.0 beta 14 and GPU-Z version 0.7.3 for monitoring of temperatures inside the closed system case, which configuration is discussed in detail in the following chapter of the review. All tests were performed at 20°C room temperature.
The Twin Frozr IV Advanced is almost perfect in terms of efficiency. In the automatic fan regulation mode the GPU was only 68°C hot and the fans rotated at less than 1300 RPM.
That’s a very good result for a pre-overclocked GK104. And if that’s not enough, you can set the fans at their maximum speed and lower the temperature down to 57°C.
That’s just excellent. Now let’s see how noisy MSI's cooler is.
The noise level of each cooler was measured between 1:00 and 3:00 AM in a closed room about 20 m2 big using CENTER-321 electronic noise meter. The noise level for each cooler was tested outside the system case when the only noise sources in the lab were the cooler and its fan. The noise meter was installed on a tripod and was always at a 150 mm distance from the cooler fan rotor. The tested cooling systems were placed at the edge of the desk on a sheet of polyurethane foam. The lowest noise reading our noise meter device can register is 29.8 dBA and the subjectively comfortable noise level in these testing conditions was around 36 dBA (do not mix it up with low noise level). The fan(s) rotation speed was adjusted in the entire supported range using our precise in-house controller by changing the voltage with 0.5 V increment.
For the comparison’s sake, the diagram also shows the noise level of the reference Nvidia GeForce GTX 760 and of the Palit GeForce GTX 760, which is equipped with an original JetStream cooler. The vertical dotted lines mark the peak speed of the coolers’ fans in the automatic speed regulation mode. Here’s the diagram:
When the fans are regulated automatically, the MSI GeForce GTX 760 HAWK is the quietest of the three cards, and by a large margin at that. In 3D mode the MSI is audible against the background noise of a quiet computer, but it doesn't become as annoying as the reference card or the Palit. In 2D applications the MSI is absolutely silent. So, the Twin Frozr IV Advanced is perfect in terms of both performance and noise level.