The default cooling system deployed on the GeForce GTX 760 is exceedingly simple, consisting of a small aluminum heatsink with a copper base, a 67mm radial fan and a plastic casing:
The fan features an optimized PWM-based regulation algorithm previously implemented on the GTX 780 and GTX 770:
The new adaptive algorithm ensures a smoother control over the speed of the fan, making the graphics card more comfortable acoustically.
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 4x MSAA. We used MSI Afterburner 3.0.0 beta 10 and GPU-Z version 0.7.1/0.7.2 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 25°C room temperature.
Now let’s see how efficient the cooler is when its fan is regulated automatically:
So, the card’s simpler cooler can barely cope with its GPU. The latter is 86°C hot at peak load while the fan accelerates to an impressive 2700 RPM. The monitoring graph shows the fan change its speed smoothly as the load grows up. When the load is removed and the card switches to 2D mode, the fan quickly slows down.
At the maximum speed of the fan (3570 RPM), the temperature was lower by 11°C, so the GPU was 75°C hot.
The card was too noisy then, though.