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Besides the enhanced PCB and pre-overclocked GPU, the HIS 7850 IceQ Turbo X features the original cooler HIS IceQ:

It consists of a copper 115x94mm base, four nickel-plated copper heat pipes soldered to the aluminum fins (the two central pipes are 8 mm in diameter and the other two are 6 mm), and a plastic casing with a radial fan.

The plastic casing is designed in such a way that the air from the fan goes through the heatsink and is then exhausted out of the system case, cooling the card’s power circuitry along the way.

The radial fan is 58 mm in diameter. Its rated service life is 50,000 hours. Its speed is PWM-regulated in a range of 1000 to 3150 RPM.

The original cooler copes well with the pre-overclocked HIS 7850 IceQ Turbo X:


Auto fan mode

Maximum fan speed

When the fan was regulated automatically, its speed reached 1670 while the GPU was no hotter than 56°C. At the maximum speed of 3150 RPM the temperature was 10°C lower. Replacing the default thermal interface with ARCTIC MX-4 helped us lower the temperature in each mode by a couple of degrees more.


Auto fan mode

Maximum fan speed

The HIS IceQ cooler is impressive indeed. It just calls for more GPU overclocking. So, we guess it’s the right time to mention the exclusive HIS iTurbo utility which is meant for overclocking, monitoring and managing the graphics card.

We used the latest available version 1.3.1 dated the 19th of November 2012. HIS iTurbo has four tabs in its main window. The Info tab provides information about the graphics card including its serial number. The Overclock tab is where you can increase the card’s GPU and memory frequencies as well as the Power Limit parameter and core voltage:

 

Besides, you can create up to four overclock profiles and quickly enable them whenever you want.

The Fan Control tab is for setting up the speed of the fan and monitoring that speed as well as temperature.

 

And the last tab of the iTurbo utility offers the rest of setup options including the option to disable the power-saving UPLS mode (HIS recommends doing so if you overclock your card).

We tried to overclock our two samples of the HIS 7850 IceQ Turbo X card using iTurbo and found them to be identical in terms of memory frequency. We managed to increase it to 5750 MHz. The GPUs were stable at 1090 and 1035 MHz.

 

That’s not much of overclocking, especially as the GPU clock rate of the first card had to be eventually reduced by 20 MHz to avoid visual artifacts.

 

The temperature of the cards didn’t change much when we had overclocked them.

 

 

 
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