引自http://www.pcper.com/article.php?ai...pe=expert&pid=1

我不知道你看評論是只看圖片就下定論
6600GT With PureVideo


The NVIDIA PureVideo technology corrects this image issue by removing the bad frame and replacing it with correct ones.

X700 Pro Default Settings

The ATI driver does the same thing as the NVIDIA PureVideo technology here and keeps the ghosting from occuring. And actually, the ATI IQ seems a bit sharper here, though during animation they appear the same.

不好意思，我取這篇評論的原文
原文說到：ATI的驅動程式做了跟NVIDIA PureVideo一樣的作用就是防止鬼影的發生，事實上，ATI的圖像品質似乎有點太銳利了，即使再播放中也是一樣

我不知道這些話可以得出ATI有比較好的地方，反而是帶點負面的。

至於總結的部份：
Image Quality

With the PureVideo technology's settings set appropriately, NVIDIA's image quality was at least equal to that of the ATI cards in terms of DVD and video playback. The only issue that concerns me is that in a few of our tests, the best image quality did not come from the NVIDIA default settings in the decoder. This means that a user would have to be able to set the de-interlacing mode to "smart" to get the best picture in T2 (and presumably other titles) and that just isn't something that the consumer is going to do that is expecting a "consumer electronic" like experience. ATI's image quality at default settings seemed to be better able to detect the proper post-processing that was necessary, and because of that the "install and go" on the ATI card and driver was easier than the NVIDIA attempt.

Final Word的最後一段
In the end, PureVideo is a great technology from NVIDIA that is basically a free addition to a line of graphics cards that already had much of the enthusiast crowds' attention. While the DVD decoder isn't a free upgrade, the driver is, and even without the decoder you can get the benefits of the improved video quality. Adding the DVD codec gives you the best possible DVD playback on your PC as well as support for the HD DVD formats, so it may well be a good investment to you. PureVideo technology puts NVIDIA on par with, and in some cases ahead of, ATI's video quality and performance.

>PureVideo technology puts NVIDIA on par with, and in some cases ahead of, >ATI's video quality and performance

原文說道：PureVideo技術使得NVIDIA足以與ATI的影像品質抗衡，甚至在某方面超越

如果以這個評論，總結還是説PureVideo技術優於ATI
我不知道你看到這評論 何以得出ATI DVD 播放品質較好?
還是喜歡上 PC太平洋廣場
"高品質視頻壓倒ATI?NV PureVideo細節詳述"
這種斷頭式的標題法....