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GPU memory usage (Radeon HD 6950)

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What are the conditions for the GPU memory usage to appear in the external Application sharing preference?

I have a Giagbyte GAZ68XP-UD3 with a ATI HD-6450 on cat 11.9 and they shows up fine...

I also have an Asus P8P67-Deluxe B3 with a ATI HD-6950 on cat 11.10 preview 3 and they dont show up.

Both GPU-Z and ATI tray tools have no problems detecting/displaying this info with cat 11.10 preview 3.

11.10 preview 3 is basically final, WHQL will be out tuesday.

The 2nd machine is my gaming machine, so its important that i stay on the most current Cat.

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  • 1 month later...

afaik, they either check via DDraw, (though this has issues when reporting back more than 1GB) or use an undocumented driver method

The DDraw method doesn't work under Vista and Win7 anymore. AIDA64 uses that method under WinXP on both AMD and nVIDIA cards.

As for the undocumented driver method, yes, GPU-Z most likely uses such trick. Most probably it uses an undocumented ADL call, but we don't know more than that I'm afraid :(

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We've implemented GPU video memory usage monitoring in the latest beta version of AIDA64 Extreme Edition available at:


After upgrading to this new version, make sure to restart Windows to finalize the upgrade.

Let me know how it works.

The measured values are listed on the Display / GPU page, and of course they can also be displayed on the OSD Panel, SensorPanel, Logitech LCD, or logged into file. Please note that GPU video memory usage data is only available under Win7 and Win8 (Windows Developer Preview). We might add Vista support later.



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