What are the advantages of WDDM 1.1 vs 1.0?


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Just wondering if there is any real performance change? I have a mobile Intel GMA 4500M it does support WDDM 1.1 just wondering if there are any advantages over using 1.0

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Just wondering if there is any real performance change? I have a mobile Intel GMA 4500M it does support WDDM 1.1 just wondering if there are any advantages over using 1.0

Better memory management with DWM, so yeah, there is a difference.

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Better memory management with DWM, so yeah, there is a difference.

Does it use graphic memory or System memory? or is it combined, would you recommend it for a mobile card?

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Dunno if it's Windows 7 as a whole or the 1.1 drivers, but if you leave a Direct X game to Windows while keeping it open, the OS does a much better job at handling the transition back and forth. But this is only the beginning.

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Does it use graphic memory or System memory? or is it combined, would you recommend it for a mobile card?

1.0 uses both, 1.1 uses only graphics memory.

The latter uses less RAM (as much as 10MB for a full screen window on a modern display), but is substantially slower for operations that involve reading back data since it has to now copy it from graphics to system memory on demand (which doesn't happen that much, but shows that it's a compromise).

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The XP "solution" was simply too dated and couldn't be kept anymore. That's life. It's not coming back.

Also, DirectWrite and Direct2D will be available on Vista/1.0.

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