Mainstream Video Quality Shootout

Discussion in 'PC Hardware, Software and Displays' started by Arty, Dec 7, 2005.

  1. mrcorbo

    mrcorbo Foo Fighter
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    Sorry about being away from this thread, kinda thought it had died....

    Keep in mind that they were using a 3.6GHz PIV in their test. That's going to be able to handle the WMV-HD decoding just fine with or without assist from the GPU. It's possible that the 6800 Ultra's results were, in fact, showing the result of the broken VPP (it was slower, even if the margin wasn't that large).

    Anyway you wanted a link to something official? Here it is, right from the horses mouth Nvidia customer support:

    http://nvidia.custhelp.com/cgi-bin/...opup_adp.php?p_faqid=108&p_created=1098889190

    In all honesty, if you've got a 6800-class vid card in your machiine you are also very likely to have it paired with a CPU that's capable of playing back these clips without any hardware assist, so it's not really that big of a deal. Still, NVidia should be accurate on their own website. For the record, I think it is an error and not a deliberate attempt to mislead. If you look at the tables you might notice another error, too. It shows the page designer didn't really proofread the page very well.
     
  2. Murakami

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    :sad: :mad: :cry:
    Do somebody have a link to an MPEG2-HD clip?
     
    #62 Murakami, Dec 15, 2005
    Last edited by a moderator: Dec 15, 2005
  3. mrcorbo

    mrcorbo Foo Fighter
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  4. Deathlike2

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    So.. was this "information" a bunch of BS?

    If this information was false, wouldn't NVidia make an attempt to disclaim this info? The fact the Anand and other websites HAD IT RIGHT... choosing not to follow what NVidia had told them is just... :roll:

    Though, I'm disappointed at the minor fact that there hasn't been a lot of benching of CPU utilization for Purevideo (and soon to come AVIVO) HD video encoding/decoding...
     
  5. Murakami

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    Pure Video supporto page has changed: now, 6800 GT/Ultra PCI-E does not support WMV9 acceleration...:evil:
    I immediately changed my 6800 GT with a 6600 GT...:twisted:
     
  6. Murakami

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    New tests with "T2: 720p" and my brand new 6600 GT...nothing changed: CPU % is the same (with or without "high quality mode" switch in WMP10, 2 patches already installed), GPU temp does not rise...it doesn't work! :shock:
     
  7. Deathlike2

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  8. Murakami

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    Yes, i installed PureVideo decoder, but PureVideo is only an MPEG decoder: in fact, it shows its icon in the systray only if WMP plays a DVD.
     
  9. Deathlike2

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    Considered reinstalling the drivers+Purevideo decoder after changing the video card? It might be worth trying here.
     
  10. Moloch

    Moloch God of Wicked Games
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    erm purevideo does wmv-hd steams along other things.
    If you have purevideo installed you should also get the purevideo systray item.
     
  11. Murakami

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    No, PureVideo Decoder is only an MPEG decoder: http://www.nvidia.com/object/dvd_decoder_techspecs.html
    http://www.nvidia.com/object/decoder_faq.html
    "The NVIDIA DVD Decoder combines the industry’s highest quality DVD and MPEG-2 playback with rich surround sound and is capable of supporting any Microsoft DirectX 9 compatible graphics product. Once installed, no additional setup is required. The DVD Decoder runs automatically whenever MPEG-2 or DVD video is launched in Windows Media Player. " from http://www.nzone.com/object/nzone_purevideo_requirements.html
     
    #71 Murakami, Jan 15, 2006
    Last edited by a moderator: Jan 15, 2006
  12. Murakami

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    I've just formatted my system with no luck.
     
  13. Moloch

    Moloch God of Wicked Games
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    Well.. wmv-hd is a feature of purevideo according to nvidia, what you're referring to is the dvd decoder that you pay for.
    http://nvidia.com/page/purevideo.html
     
  14. Murakami

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    Exactly what i mean: PureVideo is the technology behind the video processor, PureVideo decoder is the MPEG decoder. To get WMV-HD acceleration support, PureVideo decoder is not required; only Forceware drivers, WMP10 and two WMP patches, just like Ati.
     
  15. Moloch

    Moloch God of Wicked Games
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    Oh I see what you meant.
    ya.. you dont need to pay to get wmv-hd accel.
     
  16. Murakami

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    Yes: i don't need to pay because it does not work... :lol:
     
  17. Moloch

    Moloch God of Wicked Games
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    works for 6600GTs unless your card is borked.
     
  18. Murakami

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    Well, there's something strange here: unlike 6800GT, during MPEG2 playback (with PureVideo decoder) GPU temp rises only by 1° C...exactly like WMV-HD playback... :shock:
    Switching to "overlay mode" in WMP10 does not change anything during WMV9 playback: in order to test CPU %, i have to uninstall the two WMP10 patches.
     
    #78 Murakami, Jan 15, 2006
    Last edited by a moderator: Jan 15, 2006
  19. Murakami

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    Ok, i uninstalled the patches and CPU % goes up to 40-50 degree; reinstalled the patches and CPU % goes down to 20-30 degree.
    Conclusion: NV43 WMV-HD acceleration does work; GPU temp is not a reliable indicator (6600 GT related only).
     
  20. Moloch

    Moloch God of Wicked Games
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    As I said much earlier in thread, you should be looking at gpu speed in rivatuner.. it goes to 3d clocks when accerating video.
     
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