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As a result, even the chips random access memory after 15 minutes of operation under full load, they heat up to 70 degrees. However, the temperature of the back of the card under the voltage control module rises to 80 degrees. There is no back cover for heat dissipation on this card.
![msi kombustor opengl 4.3 support msi kombustor opengl 4.3 support](http://www.ozone3d.net/public/jegx/201412/geeks3d-gpu-benchmarking.jpg)
On the map GTX 660Ti DirectCU II The cooler from Asus is made especially well, but some points require clarification. All the cards performed differently, from the quiet and cold Asus card to Zotac GeForce GTX 660 Ti AMP! Editionthat set its fans to high speeds to cope with the rise in temperature. We measured the temperature and fan speed for 5 minutes after starting the computational task. Temperature graphs for all cards when running GPGPU applications Working temperature and noise measurements We can conclude that cards of the "long" form factor, in general, show higher clock rates than those that copy the design of the model. instead, it doesn't benefit from GPU Boost. MSI card N660 Ti PE 2GD5 / OC behaves pretty well. For example, Asus card GTX 660Ti DirectCU II remains at 915 MHz, which makes you look at its acoustic and thermal characteristics from a different angle, because these indicators are much easier to control, while the GPU of some competitors is already 250 MHz faster. It is also interesting in terms of power consumption. Let's take a closer look at the graph to determine the thermal ceiling for each card and the GPU Boost algorithm. They are slightly different from those we saw in 3DMark 11. The graph below shows the clock speeds of video cards under load.
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So, with average FPS values, AMD cards turned out to be more economical. Note that with a decrease in FPS, power consumption does not decrease. The efficiency of this card is limited by the memory bus bandwidth. This is about 20 watts less than it spends in a similar case GeForce GTX 660 Ti (118 W and 124 W respectively). Power consumption of a tandem of two cards Radeon HD 7750 in CrossFire, when running the game at 1920x1080 resolution with 8x anti-aliasing enabled, MSAA is 98 W (or 102 W when playing Crysis). However, in terms of power consumption, all models demonstrate approximately the same results. Various map modifications GeForce GTX 660 Ti possess different characteristics - The Zotac variant has the highest clock speed, while the Galaxy has the most memory. The only caveat is Radeon HD 7950 from AMD draws a lot of power during Blu-ray video playback. Map GeForce GTX 660 Ti does not greatly outperform AMD products in terms of watts consumed. In the upper price segment of video cards, the spread in power consumption indicators is usually small. → Lighting engineering Gtx 660 ti working temperature.