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APU's dual graphics - how to enable Crossfire?

By Alpha Gamer
Mar 1, 2012
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  1. My girl just got herself a A6-3400M notebook. It comes with AMD Radeon HD 6520g + AMD Radeon HD 6750m Dual Graphics. I'm having a hard time understanding how they work. Do I have to enable the crossfire somewhere or they're already crossfired out of the box? Is there any kind of setting where I would decide which gpu is primary/secondary or that's just not up to me to decide? According to msi afterburner, during a game session(Trine), the only gpu being used is the 6520g, while the 6750m just sits there, doing nothing. Last question, and perhaps the most important: when downloading drivers on AMD's website,

    Under "find a driver" tab, after choosing "notebook graphics" on the first field, should I select "A-series APU" or "HD Radeon Series" on the second field?

    Guys, I'm completely lost here. Any light on the subject would be most welcome. In the meanwhile, I'll try to get her more demanding games and see if we can wake up the 6750m.

    Thanks in advance
  2. Buckshot420

    Buckshot420 TS Enthusiast Posts: 297

    did you install the newest Catalyst driver or you just downloaded it? Do the "automatically detect and install"
  3. Alpha Gamer

    Alpha Gamer TS Evangelist Topic Starter Posts: 357   +119

    She had done the "automatically detect and install" even before me posting this thread. But, according to her, the "crossfire mode" automatically kicks in whenever you're running a graphically demanding application. She could verify it by running Resident Evil 5. It just so happened that Trine didn't trigger it. In such cases, you must go to catalyst control center and enable it for the desired application.

    Here's a picture of AMD's system monitor. As you can see, when you do the Asymmetric CrossFire, the GPU is called HD 6755G2.


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