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Asus' iTracker Application
The most exciting and innovative feature of this Matrix card is the
functionality provided by Asus' iTracker application. It allows the user to
change GPU and memory clock speeds, voltages, and fan control settings.
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iTracker Default profile page.
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iTracker comes with four preset modes — Optimized, Gaming, Default, and
Power Saving, with both 2D and 3D settings available. Surprisingly frequency
and voltage manipulation hasn't been crippled as the GPU clock has a range of
250 MHz to 950 MHz and memory can be adjusted from 900 MHz to 2200 MHz. GPU
and memory voltages can be tweaked from 1.000V to 1.6000V and 1.300V to 1.800V
respectively. We recommend only making minor adjustments and testing for stability
after each change. Caution should be used when this amount of control is allowed.
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iTracker Modes: Clock Speeds & Voltages
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iTracker
Mode
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GPU
Clock
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Memory
Clock
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GPU Voltage
|
Memory Voltage
|
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Optimized 2D
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500 MHz
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950 MHz
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1.273V
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1550V
|
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Optimized 3D
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800 MHz
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950 MHz
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1.367V
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1.550V
|
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Gaming 2D
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770 MHz
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950 MHz
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1.316V
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1.550V
|
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Gaming 3D
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800 MHz
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950 MHz
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1.367V
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1.550V
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Default 2D
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770 MHz
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920 MHz
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1.316V
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1.520V
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Default 3D
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770 MHz
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920 MHz
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1.316V
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1.520V
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Power Saving 2D
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500 MHz
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500 MHz
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1.273V
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1.450V
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Power Saving 3D
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770 MHz
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500 MHz
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1.316V
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1.450V
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Incidentally, the Power Saving mode actually lowers the memory clock lower
than iTracker allows if you do it manually. Also, undervolting
the GPU below 1.230V and the memory below 1.440V caused artifacts to appear
occasionally on the screen, even when we set the clocks to the lowest possible.
For testing we used the Power Saving mode, but altered the 3D settings so they
matched those of the Optimized and Gaming modes. During video playback the clock
speeds locked to the default 770 / 920 MHz regardless of the profile used.
While the card has two fans, iTracker can only change how fast the smaller,
auxiliary fan (the one over the VRM section of the board) spins. Unfortunately,
the fan does not spin up below 40% speed, so the fan starts at a very high minimum
speed of 3000 RPM. This means it can only be turned completely off or made to
spin faster.
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iTracker Information page.
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iTracker is also an excellent for monitoring. It displays the video card's
clock speeds, voltages, temperatures and fan speeds. It, along with power consumption
measurements confirmed that both voltage controls were actually functioning
and not just for show.
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