NVIDIA Enables PureVideo on GeForce 6 GPUs
by Anand Lal Shimpi on December 20, 2004 1:22 PM EST- Posted in
- GPUs
Final Words
Well, was it worth the wait? Considering that PureVideo came as a free feature on GeForce 6 cards, it's more like unwrapping an early Christmas present - one that we were promised eight months ago.
NVIDIA's image quality is pretty good for a PC DVD decoder, PureVideo delivered de-interlacing image quality that was equal to and in some cases better than what ATI brought to the table. And although we did not feature the comparison here, the NVIDIA PureVideo codec even offered better image quality than the latest DScaler 5 build.
Despite doing better than the competition, NVIDIA still is far from perfect with PureVideo. The Big Lebowski test was proof alone that there's still room for improvement.
The scaling quality and WMV9 playback were both quite competitive with ATI's offerings, although not strikingly better. With hardware acceleration enabled, WMV9 acceleration is promising and will greatly reduce the CPU requirements for high definition content playback.
Overall we're pleased with PureVideo, there's very little to complain about. We aren't as happy with it as we could have been, but we mostly have issue with the way NVIDIA handled the entire situation remaining quiet for far too long. Not to mention that there can't be too many happy 6800GT owners out there knowing that 6600GT owners will have lower CPU utilization when playing WMV9-HD files.
In the end, PureVideo is a positive feature for GeForce 6 owners, a verdict that we are glad we can finally give.
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Anand Lal Shimpi - Monday, December 20, 2004 - link
gordon151I should have made this more clear, I used the NVIDIA codec for NVIDIA's tests and I used ATI's codec for ATI's tests. I used Zoom Player for both of them.
ViRGE
They never briefed me on anything like that but I can always ask :)
Take care,
Anand
ViRGE - Monday, December 20, 2004 - link
Thanks Crimson, but I'm talking about the video features, not the elusive cards themselves. ;-)crimson117 - Monday, December 20, 2004 - link
#29: http://anandtech.com/news/shownews.aspx?i=23531ViRGE - Monday, December 20, 2004 - link
I know this is an Nvidia article Anand, but could you get on ATI's butt about their lack of features too, and find out what's going on? When the X800 was launched, ATI was talking about decode acceleration for MPEG4 along along with some sort of encode acceleration(i.e. all the features NV promissed but never delivered on). I'm curious to know what happened to that, and if we're going to get something new out of ATI besides WMV acceleration.gordon151 - Monday, December 20, 2004 - link
I was wondering why AT's results were different than PCPers and just noticed they used MMC & 4.12 while AT used the nVidia codec and player for both cards tests.Anand Lal Shimpi - Monday, December 20, 2004 - link
YtterbiumI've asked numerous times, never gotten a response. I'll try again :)
For those of you who are wondering, I have asked NVIDIA what their official statement is to early 6800 adopters, but that has also been met with no response.
Take care,
Anand
Ytterbium - Monday, December 20, 2004 - link
I'm dissapointed that the encode function never made it, that was a killer feature. Any idea if it will come?Spike - Monday, December 20, 2004 - link
Thanks for that! I have the BFG 6800 GT and on the BFG cd there is the nvDVD software. It's nice to know I can actually use the VP that I paid for!-spike
Gatak - Monday, December 20, 2004 - link
Here are some examples of interlacing artifacts when redering on a progressive screen:1) http://moment22.mine.nu/interlace_1.jpg
Most software DVDs either blend or remove one of the fields by some partial de-interlacing algorithm. nvidia's DVD decoder does it ok. The image is sharp but still leaves only half framerate.
2) http://moment22.mine.nu/interlace_2.jpg
But in reality, half temporal resolution is lost. What should have been done is to render each field as a separate frame.
3) http://moment22.mine.nu/interlace_3.jpg
Anand Lal Shimpi - Monday, December 20, 2004 - link
SpikeI wasn't aware that the 6800s are coming with NVDVD, in that case you are good to go. Just download the updated version (1.00.67 is the official version) from the website.
Rand
The full system was configured as follows:
Intel Pentium 4 570J
Intel D915GUX Motherboard
2 x 512MB DDR2-533 DIMMs
Intel HD Audio Enabled
Windows XP SP2 w/ DX9c
Take care,
Anand