NVIDIA Enables PureVideo on GeForce 6 GPUs
by Anand Lal Shimpi on December 20, 2004 1:22 PM EST- Posted in
- GPUs
DVD Playback Quality
Now that we've laid the background information, it's time to look at DVD playback quality. Although NVIDIA provided us with around 700MB of test data, we took it upon ourselves to put together our own test suite for image quality comparisons. We used some tests that have been used in the home theater community as de-interlacing benchmarks, as well as others that we found to be particularly good measures of image quality.
For all of our quality tests we used Zoom Player Pro, quite possibly one of the most feature filled media players available.
Our first set of tests are Secrets of Home Theater and High Fidelity tests. The Galaxy Quest theatrical trailer isn't flagged at all and relies entirely on the DVD decoder's algorithms for proper de-interlacing. The default image below is ATI's X700 Pro, mouse over it to see NVIDIA's PureVideo enabled 6600GT:
Hold mouse over image to see NVIDIA's Image Quality
NVIDIA offers a huge advantage here, the interlacing artifacts that are present in the ATI image are no where to be found in the NVIDIA image.
Next up we have The Making of Apollo 13 documentary off of the Apollo 13 DVD. Often times bonus materials on DVDs aren't properly encoded and trip up DVD decoders, let's see how ATI and NVIDIA fair here. The default image below is ATI, mouse over the image to see NVIDIA.
Hold mouse over image to see NVIDIA's Image Quality
NVIDIA once again takes the lead here; notice the combing artifacts on the man's suit coat, they are not present with NVIDIA's solution.
Our final test here is from the Making of the Big Lebowski off of the Big Lebowski DVD. The scene here is "The Jesus" licking a bowling ball, first let's have a look at what the scene is supposed to look at just before it transitions to another frame:
Hold mouse over image to see NVIDIA's Image Quality
Neither ATI or NVIDIA pass the Big Lebowski test, what went wrong here? The correct image above was generated by using a software decoder (DScaler 5) and forcing "bob" de-interlacing, which uses none of the data from the next field in constructing the current frame. The reason this works is because this particular scene causes most DVD decoders to incorrectly weave two fields together from vastly different scenes, resulting in the artifacts seen above. It's quite disappointing that neither ATI nor NVIDIA are able to pass this test as it is one of the most visible artifacts of poor de-interlacing quality.
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MDme - Monday, December 20, 2004 - link
Hey Anand, why not suggest to nVidia that owners of 6800 series GPUs be able to download the codec and just have their serial #'s or proof of purchase? I mean, they shouldn't tout a feature that you need to pay extra for?They already screwed us 6800GT/U owners with a "broken" feature, now they wanna screw us 20$ more to get the "broken" feature?
We need a petition site!!!!!
Guspaz - Monday, December 20, 2004 - link
I was under the impression that the deinterlacing was done by the DVD decoder app itself. So would not the results differ from WinDVD to PowerDVD to Zoom? Also would have been nice to compare it to other modes of software deinterlacing such as motion compensated.Something that I didn't see mentioned in the article is that while the hardware deinterlacing is certainly a win for nVidia, ATI wins the WMV9 acceleration category, as I'm pretty sure that all R3x0 cards support it back to the 9500/9700. That means that ATI's WMV9 market penetration is way higher than nVidia's, since very few nVidia cards can do the acceleration.
Klaasman - Monday, December 20, 2004 - link
Nevermind. Found info at Nvidia."The new software will upgrade the decoders in ForceWare Multimedia 3.0 to access the new features in the NVIDIA DVD Decoder. The NVIDIA DVD Decoder will not upgrade NVDVD 2.0 as it was a separate application based upon an old architecture."
They want me to pay twice for it I guess. Greedy bastards.
Klaasman - Monday, December 20, 2004 - link
I got a copy of NVDVD with my eVGA 6800GT. How do I update the DVD codec? When I install the new version from Nvidia, it still asks for credit card info and stuff.jonny13 - Monday, December 20, 2004 - link
"NVIDIA's DVD decoder has always been $20, unfortunately I don't know of a single manufacturer that gives away their DVD decoders for free."I know that their DVD decoder has always been $20. But, they never specified that you would need to pay extra for a feature that they touted for months. Thats like making you pay for a special driver to get PS3.0 to work. If they advertise it as a feature on a card I am paying $500 for, it better damn well be free and not another 20 f'ing dollars.
/rant
b3roldan - Monday, December 20, 2004 - link
I'm really disappointed with the 6800s not having the wmv9 decoding... was gonna get myself a 6800U for xmas. I was reading on the X800XT-PE coz there's a Sapphire X800XT-PE relatively cheaper than most 6800Us in http://buycomp.hkgolden.com.Then I came accross this webpage that says the nv48 is still coming... http://www.digitimes.com/mobos/a20041220A7039.html
hehe... I guess I can wait 3 months for the nv48, but then with the R520 just around the corner... man buying a card is starting to become a tough decision.
neways... I was wonderin if neone could confirm this information on the hardware flaw...
http://www.animenation.net/forums/archive/index.ph...
RCIEGR - Monday, December 20, 2004 - link
You missed one very important feature to me.The 6800gt lacks the true hd output formats in component video output. I have a 6800gt and these card didn't include the special 10-pin din connector to the hd-component/s-video/composite adaptor plug. My freind at work bought a 6600gt(Chaintech) for his son for xmas, so I borrowed the card for a test this last weekend. Having a old school sony KDP-57XBR2 HDTV with only firewire and 2-hd component vidoe imputs. The true hd-output of the 6600gt is way more important of a feature to me then the wmv9 decoding.
The output over component(both true 1080i & 720p; the sony can nativly handle both) looked very good, for both hd video(surferp****.com), hd tapestreams recorded from the firewire output of the mot-6208 hd-cable box and the latest games, once you figure out how n-view works and you get the game resolutions correct.
anand, take a close look at the reference 6800gt cards and I think you will see the 10-pin din connector.
I want a RMA for a 6800gt with the true hd-output with component video. eVGA does have a 90-day upgrade program. Maybe a 6900gt will show up quick?
Thanks for you time
Robert
MDme - Monday, December 20, 2004 - link
Well, my XFX 6800GT didn't come with the NVDVD decoder. it's a shame nVidia sells a very expensive video card and tout's this feature but doesn't include the software to make it work.I think nvidia should know how it's customers feel. after all we were the early adopters. it's one thing to have a partially working feature but it's totally a rip-off not to have it at all!!!! $400 for a video card and you need to pay more for software to make it work? :(
Hope Anand can be a voice for us.
ViRGE - Monday, December 20, 2004 - link
Anand, check the final X800 press presentation slide-show/PDF, it was in there somewhere last time I read it.sheik124 - Monday, December 20, 2004 - link
nVIDIA has really done it this time. #29 mentioned ATI not doing their part, but at least the features they advertised and are slowly deploying work on ALL OF THE GPUs. nVIDIA owes us something for the false advertising, they've really wrecked my day, I paid for something, and I expect to have it, not half of it.