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Old 6th September 2005, 18:50   #1  |  Link
sjchmura
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NVIDIA AVC 264 accell in drivers - any beta/rumors for 7800GTX???

I have heard the "80" series would include hardware support ala the demonstrated ATI suppprt. Do the new beta drivers enalbe this with PureVideo(tm) ??
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Old 6th September 2005, 20:44   #2  |  Link
Sharktooth
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There are no official comments on nvidia beta drivers.
There are only (as you said) rumors. Until officially stated by nvidia, i wont trust any rumor.
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Old 7th September 2005, 01:34   #3  |  Link
superdump
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You could trust test results maybe...
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Old 7th September 2005, 12:11   #4  |  Link
nmap
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Not that I encourage any Leaked Nvidia drivers but here's the leaked nvidia 80.40

http://www.3dchipset.com/drivers/nvi...a/nt5/8040.php
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Old 7th September 2005, 15:06   #5  |  Link
sjchmura
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Tell more - what test results?? Are they posted here? I searched this forum and google

From what I understood people were unable to "activate" the hardware acceleration in these drivers
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Old 8th September 2005, 06:18   #6  |  Link
nmap
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I wish I could. I've had some problems in the past regarding nvidia's drivers so I won't touch leaked ones with a ten foot pole.

Since they're leaked I suspect that they may still have some of the debug options enabled, so if people report that they can't get things working it comes of no shock.

Check here: http://www.laptopvideo2go.com/forum/...showtopic=7427 for some interesting results, problems, issues, etc. None of the benchmarks include the 80 series though.
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Old 8th September 2005, 19:01   #7  |  Link
plonk420
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i'd bet the accelleration would be on the side of the decoder, aka nVidia DVD(/whatever) decoder...
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Old 9th September 2005, 13:56   #8  |  Link
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From MSI:
NVIDIA PureVideo™ Technology

• Three dedicated video engines
• H.264 hardware assist
• Industries most advanced video algorithms
• DVD and HDTV-ready MPEG-2 decoding up to 1920x1080p resolution
• Inverse 2:2 and 3:2 pure down
• Display gamma correction
• Microsoft® Video Mixing Renderer (VMR) supports multiple videowindows with full video quality and features in each window
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Old 9th September 2005, 22:54   #9  |  Link
plonk420
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yeah, the drivers can say they support it all they want, but the accelleration won't happen until the software supports/enables it. PureVideo accelleration didn't come out the moment the cards did, IIRC. it was weeks/months(?) later...
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Old 11th September 2005, 06:54   #10  |  Link
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Quote:
Originally Posted by plonk420
yeah, the drivers can say they support it all they want, but the accelleration won't happen until the software supports/enables it. PureVideo accelleration didn't come out the moment the cards did, IIRC. it was weeks/months(?) later...
Yes that's right. The only way to get any acceleration will most likely be through PureVideo. At the moment if you have a 6-series card the nVidia PureVideo decoder does a really good job of accelerated MPEG-1/2 playback, including HDTV. I assume they will upgrade it to accomodate h.264.

I have also read that the 80 series ForceWare drivers support h.264, so hopefully the wait will not be long for an upgraded PureVideo decoder.

Does anyone know how different the PureVideo chip on the 7800 is in comparison to those on the 6800s? The nVidia website (http://www.nvidia.com/page/purevideo_support.html) doesn't mention h.264 in their comparison, but the chips otherwise seem to be quite similar. The 7800 will do hi-def deinterlacing better, but that's about all that's different.

I'm hoping that the new PureVideo decoder will help accelerate h.264 on the 6-series cards, at least on the 6600 or 6800 high-end ones.
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Old 12th September 2005, 11:08   #11  |  Link
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You shouldn't compare the video processor with 6800 cards since it doesn't work on most of those cards. The 6600 series has the better (namely the working) video acecleration!
So it's very (!) unlikely the 6800 series cards will support any kind of new generation video acceleration!!!

Since nVidia did so poorely with their last attempt at video acceleration I'm very carefull and sceptical to trust them again as long as they show no prove. You should be, too.
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Old 13th September 2005, 08:51   #12  |  Link
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Quote:
Originally Posted by Ice =A=
You shouldn't compare the video processor with 6800 cards since it doesn't work on most of those cards. The 6600 series has the better (namely the working) video acecleration!
So it's very (!) unlikely the 6800 series cards will support any kind of new generation video acceleration!!!
You are right that nVidia had problems with PureVideo on the 6800 series, but this ONLY affects WMV9 acceleration on PCI-X. Furthermore, the "basic" 6800 and 6800 LE cards are unaffected (I can confirm this as I have one of these cards myself), but WMV9 acceleration on the GT and Ultra versions IS broken.

According to the WMV9 specs at http://www.nvidia.com/page/purevideo_support.html...

GeForce 6800 Ultra: SD / HD display processing including Gamma Correction and Color Space Conversion

GeForce 6800 GT: SD / HD display processing including Gamma Correction and Color Space Conversion

GeForce 6800: SD / HD hardware accelerated decode and display processing including Gamma Correction and Color Space Conversion

All other specs are the same, such as for MPEG-1/2 accelerated decode.

But I take your point that you should be very careful to see whether nVidia actually delivers the goods on their promises for h.264...
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Old 14th September 2005, 20:19   #13  |  Link
plonk420
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Quote:
Originally Posted by Airw0lf
According to the WMV9 specs at http://www.nvidia.com/page/purevideo_support.html...

GeForce 6800 Ultra: SD / HD display processing including Gamma Correction and Color Space Conversion

GeForce 6800 GT: SD / HD display processing including Gamma Correction and Color Space Conversion

GeForce 6800: SD / HD hardware accelerated decode and display processing including Gamma Correction and Color Space Conversion
LOL, i looked thru that list MULTIPLE times to figure out what the difference between the 6800 series and my 6600GT was... X) guess i'm pretty blind


~~edit~~ i take back that last phrase oozing over how well my 6200 decodes 1080i... i haven't really tested to see how well something like ffdshow does at decoding it >_>

Last edited by plonk420; 14th September 2005 at 20:37.
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Old 15th September 2005, 06:31   #14  |  Link
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the 6800 series alone, has 12 pipes, with the remaining four "software" locked. While the 6600 GT can not be unlocked. The 12 pipes are all that's there. If you've got a 6800 256MB card, you can unlock the pipes and potentially have a 6800 Ultra when you're done.

Edited for card accuracy. Thanks Ice.

Last edited by nmap; 15th September 2005 at 23:24.
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Old 15th September 2005, 10:27   #15  |  Link
Ice =A=
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You meant 6600Gt there (not 6800GT)..
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Old 15th September 2005, 11:53   #16  |  Link
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Yup. The 6800GT has 16 pipes and 6 vertex units. The 6800 and 6800LE have 12 pipes and 5 vertex units, with 4 pipes and 1 vertex unit locked, or hardware masked. The 6800 and 6800LE can be unlocked, but it's a matter of cooling. The 6800 GT and 6800 Ultra have the massive heatsink because they need it!
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Old 15th September 2005, 23:23   #17  |  Link
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arg Yes, thank you. *edits post*
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Old 15th September 2005, 23:38   #18  |  Link
movax
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You don't know how long I've waited for my quaint Radeon 9200 to magically become a 9800 or something.
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Old 20th November 2005, 23:27   #19  |  Link
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Got this response from Nvidia Customer Care [nvidia@mailca.custhelp.com] :

Quote:
We apologize for the long delay. Please note the following corrections for previous responses.

Technically the NVIDIA PureVideo processor is capable of H.264 processing. However, the NVIDIA PureVideo Decoder and Graphics driver software do not support H.264 at this time. Support is only provided for MPEG-2. H.264 is planned for an undisclosed date in the future.

PureVideo can accelerate the following functions for MPEG-2:

IDCT
Motion Compensation
De-interlace
Format conversion
Block removal
Post Processing

Best regards,
NVIDIA
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Old 21st November 2005, 00:15   #20  |  Link
bond
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Quote:
PureVideo can accelerate the following functions for MPEG-2:

IDCT
Motion Compensation
De-interlace
Format conversion
Block removal
Post Processing
hm i hope they dont waste too much time on implementing "post processing", "block removal" and "de-interlacing" (what the hell is "format conversion"?) for avc...
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