DXVA post processing and HT3.0

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andrewdixon1000

76 posts

Master Geek

#21846 8-May-2008 16:41

Hi,

I've been doing a lot of reading lately about how the new H.264 decoding motherboard chipsets for AMD require an HT3.0 cpu (ie a Phenom I believe) to enable post processing to be accelerated by the onboard graphics. Reading about all the people having issues with the 780G (thanks sbiddle in particular) I'm now thinking that I will get an 8500 or 8600 card rather than go with the 780G. So my question is, with an 8500GT or 8600GT will I still require an HT3.0 cpu to be able to use the post processing capabilities of the graphics card, or is that only an issue for onboard graphics?

Thanks
Andy

mentalinc

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#129418 8-May-2008 16:48

Better way to put this is
what CPU are you looking at getting?
What else will you use the PC for.

If you plan on encoding the .ts files (the files from recording freeview) into say xvid then you will want a multicore cpu to make it faster.

anything over 2GHz will be fine.

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andrewdixon1000

76 posts

Master Geek

#129419 8-May-2008 16:50

I'm looking to get a Athlon X2 4850e (2.5GHz) once they become available here.

Thanks
Andy

mentalinc

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#129420 8-May-2008 16:59

that should do the trick, however Intel have the better performing CPUs at the moment.

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talsemgeest

75 posts

Master Geek

#129508 8-May-2008 21:25

Sorry to go off topic, but does anyone know a good program to encode the .ts s to xvid .avi s?

mentalinc

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#129513 8-May-2008 21:36

talsemgeest: Sorry to go off topic, but does anyone know a good program to encode the .ts s to xvid .avi s?

I havn't found any thing yet. Just need to wait for someone to write one.

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talsemgeest

75 posts

Master Geek

#129516 8-May-2008 21:39

Yeah, I tried uding SUPER, which does just about everything, but the .ts crashed it. Ah well, I guess I will just keep searching

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andrewdixon1000

76 posts

Master Geek

#129585 9-May-2008 08:28

I guess what I've trying to find out is: does hardware accelerated post-processing on 8500 and 8600 cards require an HT3.0 processor to work?

Thanks
Andy

sbiddle

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#129590 9-May-2008 08:43

andrewdixon1000: I guess what I've trying to find out is: does hardware accelerated post-processing on 8500 and 8600 cards require an HT3.0 processor to work?

Thanks
Andy

The answer is certainly no for a PCIe card. There are plenty of people using AMD processors such as the 4xxx+ models and 8500 cards and that works perfectly.

Where did you read that a HT3.0 processor was required?

andrewdixon1000

76 posts

Master Geek

#129597 9-May-2008 08:57

All the reviews for the new AMD and nVidia onboard graphics chipsets (eg. http://www.anandtech.com/showdoc.aspx?i=3258&p=2&cp=1) say that acceleration of post-processing requires the extra bandwidth of the faster hypertransport (NOT required for accelerated videa decoding, just for the post-processing). I just wanted to know if this applied to discrete PCIe graphics too.

Thanks
Andy